Icacos Island: Tours & Guide 2026

About the Destination

Where the cay sits and what is on it

About 1.5 nautical miles northeast of Fajardo, inside a reef reserve run by Puerto Rico's natural-resources department. Day visitors land on the southwest beach strip and leave the same afternoon.

Icacos Island lies about 1.5 miles off Puerto Rico's east coast, roughly 1.5 nautical miles northeast of Fajardo, and boats are the only way in. It covers about 0.659 km2 (0.254 sq mi), making it the largest uninhabited cay in the La Cordillera chain, which also includes Las Cucarachas, Los Farallones, Cayo Ratones, La Blanquilla and Cayo Diablo. Day visitors land on the southwest beach strip, the sector DRNA's 2017 field study labels Zone B, where bathers and water taxis arrive. DRNA's beach list records the beach at 220 metres.

A limestone quarry once worked the southern end of the cay, served by a short railway out to the pier, and those are the ruins people notice when they walk away from the landing beach. Reserva Natural Arrecifes de La Cordillera, the reserve around it, was recommended for designation in 1978 and formally designated on 2 January 1980 through the Third Extension of Planning Board Resolution JP PU-002, under the island's Coastal Zone Management Plan. Administration passed to the Departamento de Recursos Naturales y Ambientales in 1991, and that department has run the reserve ever since.

Nothing is sold or supplied on the cay: no restrooms, no drinking water, no food service, no trash collection, no permanent shade and no lifeguards, so swimming and snorkelling are at your own risk. Vegetation is palm trees, sea grape bushes and rocky points. Crowds follow a predictable curve. DRNA counted 964 people in the southwest bather zone at 2:00 p.m. on Sunday 28 May 2017, and across the study zones the peak hour was 2:00 p.m., averaging about 598 people. A 7:00-8:30 a.m. check-in puts you on the sand well ahead of that.

Land area 0.659 km2 (0.254 sq mi)

Crossing time 15-20 minutes

Distance offshore about 1.5 nautical miles NE of Fajardo

Reserve size 29,653 acres (120 km2)

Beach on DRNA's bathers list 220 metres

Usual snorkel stop about 18-25 ft of water

0.659 km2

The largest uninhabited cay in the chain

Land measures about 0.659 km2 (0.254 sq mi). Nobody lives here and there are no permanent facilities of any kind, while the management plan records sandy beach on both the south and the north coast.

2 Jan 1980

When the reef reserve was designated

Designation came on 2 January 1980 through the Third Extension of Planning Board Resolution JP PU-002, after a 1978 recommendation. Administration of the reserve passed to the DRNA in 1991.

Fish species on the reserve's reefs

Surveys of the La Cordillera reefs record 83 fish species in 33 families, half of them commercially important, plus 39 scleractinian coral species and three hydrocorals. Endangered staghorn coral grows on the shallow reef used by tour boats south of the cay.

$25,000

Maximum fine under the 2025 noise order

DRNA Administrative Order 2025-02, signed 10 March 2025, bans high-volume sound systems on boats and vehicles in reserves and beach zones under the department, including La Cordillera. Fines reach $25,000 and can accumulate daily, and the Cuerpo de Vigilantes patrols.

964

Peak crowd in the bather zone

DRNA's highest single-zone count was 964 people in the southwest bather zone at 2:00 p.m. on Sunday 28 May 2017. The cumulative high across zones was about 1,275 users at 3:00 p.m. on 1 April 2017.

Use zones in the surrounding water

DRNA's 2017 study split the water into Zone A for boaters northwest, Zone B for bathers and water taxis southwest, Zone C for catamarans and the southern reef, and Zone D for the mooring buoys and reef. Water inside the zones is calm, sheltered by the cays themselves.

Snorkelling the two shallow reefs

Boats work the flat reef south of the cay, where catamarans start their excursions, and the reef by the mooring buoys, which DRNA found richer in fish and coral. The usual stop sits in about 18-25 ft of water. No touching coral, no standing on reef, and use the mooring buoys: DRNA observed 33-34% of snorkellers doing at least one damaging thing.

A beach day on the southwest strip

Water taxis land on the 220-metre beach from DRNA's bathers list, inside Zone B. Sand accumulation shifts through the year with littoral currents, so the beach profile is not the same in January as in July. Bring shade with you, because nothing on the strip provides any.

Walking to the quarry ruins

Ruins of a limestone quarry sit on the southern part of the cay, which was once served by a short railway running out to the pier. Hikers find them a short walk from the landing beach, along the rocky points.

Watching seabirds and turtles

Seabird breeding in the reserve runs March to September and includes roseate tern, brown noddy, bridled tern, sooty tern, brown booby and laughing gull, nesting on the rocky islets around the cay and Cayo Ratones. Endangered sea turtles graze the seagrass meadows of turtle grass and manatee grass in the surrounding water.

Driving your own mini boat

Self-drive runs 3.5 hours out of Marina Puerto Chico, from $250, and puts you on a 13' boat with a 40hp Yamaha four-stroke, in a guided convoy through the cays, with premium snorkel gear, USCG-approved life jackets, a beginner briefing and no licence required.

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Icacos Island: how the ways across compare

Five of the boat trips on this site side by side, and who each one actually suits.

Every option here crosses the same 15-20 minutes of water to the same cay, so the real choice is how you cross it. A catamaran gives you lunch, drinks and a bathroom while trading beach time for sailing. A water taxi buys shade and sand. A charter buys the whole boat. The table below lines up price, duration, departure point and the traveller each one fits, so you can match Icacos Island to the day you have.

	Price	Duration	Departure point	Who it suits
★ Catamaran, snorkel and picnic cruise from Villa Marina	from $138	5 hours	Villa Marina, Fajardo, check-in by 8:30 a.m.	First-timers and families who want lunch, drinks and an on-board bathroom
Water-taxi beach day from Fajardo	from $100	5 hours	Kayak village docks off road 987, Las Croabas	Beach-first visitors who want a guide, umbrellas and the 15-20 minute crossing
Half day with roundtrip transport from San Juan	from $289	6 hours	San Juan pick-up, air-conditioned vehicle	Travellers with no car, since Las Croabas is about a 60-minute drive from San Juan
Self-drive mini boat with guided convoy	from $250	3.5 hours	Marina Puerto Chico, Carr. #987 Km 2	Active pairs happy to drive their own 13' boat without a licence
Private charter to Icacos or Palominos	from $638	4 hours	Marina parking, then the wooden gazebo near the office	Groups and celebrations wanting their own boat

Price per hour on the water favours the catamaran picnic cruise at $138 for 5 hours with food, drinks, gear and a bathroom. The water-taxi beach day at $100 gives the same five hours but on the sand, with umbrellas and a guide. Groups of four to six get the most from the $638 charter. Whichever you pick, a trip to Icacos Island refunds in full up to 24 hours before departure.

Practical info

Icacos Island Everything You Need to Know

Docks, months, kit, rules and safety for a single day on the cay.

How to reach the cay and which dock to use

Icacos Island is reachable only by boat, and no public ferry serves the cays. From San Juan the Las Croabas waterfront is about a 60-minute drive, roughly an hour from the airport area, with street parking just off the main road and public restrooms and outdoor showers close by. Water taxis use a small dock in the Las Croabas neighbourhood, behind the blue buildings of the kayak village off road 987. Fajardo's commercial port and the Ceiba ferry terminal are not departure points.

Departure points differ by product and are not interchangeable. Catamarans leave from Villa Marina or Marina Puerto del Rey: check-in 7:00 a.m. at Villa Marina for the 5.5-hour snorkelling cruise with lunch from $130, with a shuttle to the vessel, or by 8:30 a.m. at the Barefoot IV for the 5-hour picnic cruise. The self-drive mini boat checks in at the white tent next to Sabalos Restaurant, Marina Puerto Chico, Carr. #987 Km 2, Bo. Sardinera. Without a car, take the 6-hour tour with roundtrip transport from San Juan, from $289.

No public ferry: every visit is by boat from the Fajardo and Ceiba coast or from a marina
Water taxis: small dock in Las Croabas, behind the blue buildings of the kayak village off road 987, grey fence at the entrance
Catamarans: Villa Marina or Marina Puerto del Rey, check-in 7:00 a.m. or by 8:30 a.m. depending on the tour, street parking available
Self-drive mini boat: white tent next to Sabalos Restaurant, Marina Puerto Chico, Carr. #987 Km 2, Bo. Sardinera
Private charter: park at the marina, tell the guard you are on an excursion with the operator, then the wooden gazebo near the office
About a 60-minute drive from San Juan to the Las Croabas waterfront; public restrooms and outdoor showers are near the parking
Crossing time is 15-20 minutes, and the cay sits about 1.5 nautical miles northeast of Fajardo

Woman in bikini standing on catamaran net off wooded Icacos Island

Best months and the best departure window

Go between January and March. The National Weather Service puts Puerto Rico's dry season from January through March, the calmest and clearest stretch for a boat day, and April is the transition into the rainy season. The Atlantic hurricane season runs 1 June to 30 November, with activity peaking on 10 September, so late summer bookings live or die on the weather call. Sargassum builds from spring into summer, peaks in June or July and is lowest in winter.

Pick a weekday and the earliest check-in you will tolerate. DRNA's counts put the peak hour at 2:00 p.m., averaging about 598 people across the study zones, with 964 people in the southwest bather zone at 2:00 p.m. on a Sunday in late May 2017. A 7:00 a.m. check-in at Villa Marina or an 8:30 a.m. catamaran boarding has you snorkelling before the mid-day fleet arrives. Captains cancel for unsafe wind or water, so confirm times with the operator on the day.

January through March: dry season, the calmest and clearest window for a boat day
April: transition into the rainy season, still workable but less reliable
1 June to 30 November: Atlantic hurricane season, with activity peaking on 10 September
Sargassum builds from spring into summer, peaks in June or July, lowest in winter
Weekday over weekend: the peak hour across zones was 2:00 p.m., averaging about 598 people
Earliest check-ins (7:00-8:30 a.m.) beat the crowd curve and usually the calmer sea
Seabird breeding on the rocky islets around the cay runs March to September

Orange iguana resting on a tree trunk, pink building behind

What to pack for a day with no facilities

Nothing is supplied on the cay: no restrooms, no drinking water, no food service, no trash collection, no permanent shade and no lifeguards, so pack for all of that. Carry more water than you think five hours needs. Add food unless your tour includes lunch, a bag for every piece of rubbish you generate, and sun cover you can put up yourself. The catamaran cruises include lunch, drinks and snorkel gear; towels are not included on any of them.

Clothing is simple: swimwear, a long-sleeve rash top for the snorkel stop, a hat and reef-safe sunscreen, because this is a reef reserve with mooring buoys at the busiest sites. Water shoes help on the rocky points at either end of the beach. A dry bag keeps your phone safe on a 15-20 minute open crossing.

Drinking water, and more of it than you expect: none is sold on the cay
Food or a packed lunch if your tour does not include a buffet
A beach umbrella or sun shelter, since there is no permanent shade
Reef-safe sunscreen, a hat and a long-sleeve rash top
A bag for all your rubbish: there is no trash collection on the island
Towels, which the catamaran and water-taxi tours do not provide
Water shoes for the rocky points, and a dry bag for your phone

Snorkeler making heart with hands above reef fish at Icacos Island

Local rules and tips that change your day

Leave the speaker on the mainland. DRNA Administrative Order 2025-02, signed 10 March 2025, bans high-volume sound systems on boats and vehicles in nature reserves and beach zones under the department, La Cordillera included. Fines reach $25,000 and can accumulate daily, and the Cuerpo de Vigilantes patrols the marine reserves. Camping and hunting are prohibited on the cay, so every visit is a same-day return bounded by your boat's schedule.

Snorkelling habits do real damage here: DRNA observed 33-34% of snorkellers doing at least one damaging thing, most often disturbing an organism (21.6%), kicking the reef with fins (19.6%) or touching coral (15.6%). Keep off the coral, do not stand on reef, and use the mooring buoys installed at the most-visited sites. Under the management plan, public landing in the reserve is limited to this cay and the beaches of Lobos, Cayo Diablo and Palominitos.

DRNA Administrative Order 2025-02, signed 10 March 2025, bans high-volume sound systems in reserves and beach zones
Fines under that order reach $25,000 and can accumulate daily; the Cuerpo de Vigilantes patrols
Camping and hunting are prohibited on the cay: plan a same-day return
Public landing under the management plan is allowed only on this cay and the beaches of Lobos, Cayo Diablo and Palominitos
Pack out everything you bring, because there is no trash collection anywhere on the island
No touching coral, no standing on reef, and use the mooring buoys at the busy sites
Tours on this site refund in full at least 24 hours before departure

Smiling woman on boat deck, anchored boats on turquoise water behind

Health and safety on an uninhabited cay

There are no lifeguards on the cay, so swimming and snorkelling are entirely at your own risk. There is also no drinking water, no food service and no restroom, which makes heat and dehydration the practical risk on a five-hour visit rather than anything exotic. Carry enough water for everyone in your party, keep sun cover with you, and plan on shade you have brought yourself. The 5-hour catamaran picnic cruise from $138 has a bathroom on board.

Water inside the use zones is calm, sheltered by the cays themselves, which is why the southwest strip works for families. Snorkel with a buddy, stay in the bather zone rather than drifting into boat traffic northwest of the cay, and wear the life jacket on the self-drive mini boat, where USCG-approved jackets are included. Captains cancel for unsafe wind or water with no published limit, so check with the operator on the morning of your trip. The DRNA can be reached on +1 787-999-2200.

No lifeguards: swimming and snorkelling are at your own risk
No drinking water on the island; bring all you need for about five hours
No restrooms on shore; the catamaran picnic cruise from $138 has a bathroom on board
Snorkel with a buddy and stay in the southwest bather zone, away from the boater zone northwest
Water inside the use zones is calm, sheltered by the cays themselves
Captains cancel for unsafe wind or water, and there is no published wind or swell threshold, so confirm on the day
The reserve is managed by the Departamento de Recursos Naturales y Ambientales, telephone +1 787-999-2200

Teal jet ski moored in clear shallows off Icacos Island shore

Location

Find Icacos Island

The cay lies about 1.5 nautical miles northeast of Fajardo in the Reserva Natural Arrecifes de La Cordillera, Puerto Rico, and water taxis leave from the kayak village docks off road 987 in Las Croabas.

Plan your visit

Practical information for a day on Icacos Island

Crossing times, departure points, nature rules, weather windows and what to pack for an uninhabited cay with no facilities.

Getting There

Getting there

Everything that reaches Icacos arrives by boat from the Fajardo or Ceiba shoreline, and no scheduled ferry serves the cay. The crossing is short,…

Ways to visit

Icacos sits about 1.5 nautical miles northeast of Fajardo and is reachable only by boat, so the day is shaped by check-in times and return slots.…

From San Juan

From a hotel in San Juan the trip is an hour of road plus a short crossing. Below: the drive time, the dock that matches your boat, and the two…

Map and location

Icacos is small enough to walk across and bare enough that nothing on it tells you where you are. Fix the shape in your head from the map on this…

Planning Your Visit

Best time to visit

January through March, the earliest check-in of the day, and a weekday rather than a Saturday. Everything below is the reasoning behind those…

Freediver hovering over a red starfish on rippled sand, Icacos Island

Weather and sea

Trade winds, swell, runoff and sargassum all move on their own schedules, and each one changes a different part of the day. Here is how they work,…

Facilities and rules

Icacos has no plumbing, no kiosk and no bin, so the whole day gets packed in advance and finished on the mainland. Here is what is missing, where…

Crowds and weekends

Traffic on Cayo Icacos follows a shape you can plan around: thin on a weekday morning, thickest in the early afternoon, heaviest of all on a…

Worth visiting?

A balanced read on Cayo Icacos before you commit a day to it: the water, the sand and the reef on one side, the missing restrooms, shade and…

What to bring

Icacos is uninhabited and has no shop, no tap and no bin, so your day runs on what comes over on the boat with you. Below: what goes in the bag,…

On The Island

Yellow-striped snapper school near a snorkeler in Icacos Island shallows

Things to Do

The cay gives you a beach, two snorkelling reefs, a walk across to the north shore and the traces of an old limestone quarry. Nothing is built…

Trail and ruins

Away from the drop-off sand there is a walk: a worn sand and scrub line along an uninhabited cay, ending at old limestone workings above the pier.…

Icacos beaches

A 220-metre white-sand strip on the southwest side of an uninhabited cay, with a shallow shelf of sand and seagrass to wade into and nothing built…

Icacos Snorkeling

A day's snorkelling here covers two separate pieces of water: the shallow sand-and-seagrass shelf off the southwest beach, and a reef stop in…

Nature And History

La Cordillera Reserve

The cays you reach from Fajardo sit inside a reef reserve that is mostly open water, administered by a government department rather than a boat…

Uninhabited island

Nobody lives on this cay and no ferry runs out to it. Below: the land area, the names it goes by, who manages it, and how visitors get across from…

Wildlife and nature

What you can realistically see on a day trip to the cay, above the waterline and under it, and how to behave in a reef reserve that is patrolled.…

History of Icacos

The southern part of this uninhabited cay was once worked for stone, and a short rail line moved it to the pier. Everything that happened…

FAQ

Icacos Island Frequently Asked Questions

The questions that decide a day trip here: which boat, which dock, what to carry and what the reserve rules allow.

No. There is no public ferry to the cays of La Cordillera, and the only way across is by boat from the Fajardo and Ceiba coast or from one of the marinas. The cay sits about 1.5 nautical miles northeast of Fajardo and the crossing takes roughly 15 to 20 minutes. Everything on this site is a boat trip for that reason: water taxi, catamaran, self drive mini boat or private charter.

For a first visit with food and drinks handled, the Icacos Deserted Island Catamaran, Snorkel, and Picnic Cruise is the straightforward pick: 5 hours, from $138, 4.8 ★ (2587 reviews), with a bathroom on board, a sandwich buffet, piña coladas and rum punch, and snorkel gear included. If you care more about beach time than sailing, the Icacos Beach Day Package with Water Taxi Transport from Fajardo runs 5 hours, from $100, 4.9 ★ (646 reviews), with a local guide, beach umbrellas and a cooler of water, soda and local beer. Groups and celebrations are better served by the All-Inclusive Private Charter to Icacos or Palomino Islands, 4 hours, from $638, which puts you on your own boat with your own choice of cay.

Departure points are not interchangeable, so check the one on your booking. Water taxis leave from a small dock in the Las Croabas neighbourhood of Fajardo rather than the commercial port, and the beach day package meets off road 987 at the kayak village with the blue buildings and grey fence, docks behind the buildings, navy blue boat. Catamarans leave from Villa Marina or Marina Puerto del Rey, with check in by 8:30 a.m. at the latest for the Barefoot IV at Avenida Marina View, Carr. 987 Km 1.3, and 7:00 a.m. for the 5.5 hour Villa Marina cruise. The self drive mini boat checks in at the white tent next to Sabalos Restaurant at Marina Puerto Chico, Carr. #987 Km 2, Bo. Sardinera.

None of it. The cay is uninhabited and has no restrooms, no drinking water, no food service, no trash collection and no permanent shade, and there are no lifeguards, so swimming and snorkelling are at your own risk. Vegetation is palm trees, sea grape bushes and rocky points, nothing you can count on for cover at midday. Carry water, sun cover and a bag for your rubbish; if that worries you, the catamaran picnic cruise has a bathroom on board and the water taxi beach day includes beach umbrellas.

Puerto Rico's dry season starts in January and generally runs through March, which is the calmest and clearest window for a boat day, with April the transition into the rainy season. The Atlantic hurricane season runs from 1 June to 30 November and activity peaks on 10 September, so trips in late summer carry the highest chance of a weather cancellation. Sargassum feeding Caribbean beaches builds from spring into summer and typically peaks in June or July, and is at its lowest in winter. Book refundable if your dates fall in the storm months.

Go early. DRNA's 2017 field study found the peak hour across the use zones was 2:00 p.m., averaging about 598 people per hour, and the highest single zone count was 964 people in the southwest bather zone at 2:00 p.m. on Sunday 28 May 2017. The cumulative high was about 1,275 users at 3:00 p.m. on 1 April 2017. The tours with 7:00 a.m. and 8:30 a.m. check ins put you on the water well ahead of that curve, and a weekday beats a weekend.

No. Camping is prohibited on the cays and islets of the reserve, and camping and hunting are not permitted on Cayo Icacos, so every visit is a same day return on the boat that brought you. Under the reserve's management plan, public landing is to be allowed only on Cayo Icacos, the beach of Lobos, Cayo Diablo and Palominitos. Plan the day around your return slot rather than assuming you can extend it.

Leave it on the mainland. DRNA Administrative Order 2025-02, signed 10 March 2025, bans voceteo, meaning high volume sound systems on vehicles and boats, in nature reserves and beach zones under the department's jurisdiction, which includes La Cordillera. Fines reach $25,000 and can accumulate daily, and the Cuerpo de Vigilantes patrols the marine reserves to enforce it. Since there is no trash collection either, everything you carry over leaves with you.

Two shallow reefs do the work: the flat reef south of the cay where catamarans start their excursions, and the reef by the mooring buoys, which DRNA found richer in fish and coral. The usual stop sits in about 18 to 25 ft of water, over reefs holding 83 fish species in 33 families and 39 scleractinian coral species, including endangered staghorn coral on the shallow tour reef, with seagrass meadows grazed by endangered sea turtles. DRNA observed that 33 to 34% of snorkellers did at least one damaging thing, most often disturbing an organism (21.6%), kicking the reef with fins (19.6%) or touching coral (15.6%). No touching, no standing on the reef, and boats should use the mooring buoys; gear is included on the catamaran, mini boat and charter trips.

All seven tours on this site can be cancelled for a full refund at least 24 hours before the scheduled departure time. Captains do call off trips for unsafe wind or water, which is another argument for the January to March window. If you have food allergies on the Barefoot IV picnic cruise, flag them with the operator at least 48 hours ahead.

Pick the boat that fits your day.

Check Availability

Icacos Island: Boat Trips to Fajardo's Uninhabited Cay

Boat tours to Cayo Icacos

Catamaran picnic cruise

Water-taxi beach day

Half day with transport from San Juan

Private all-inclusive charter