Carlos Rosario Beach Culebra Snorkeling by Catamaran from Fajardo
The catamaran runs about 50 minutes out of Fajardo and anchors for roughly 1.5 hours over a reef off Culebra's western shore, Carlos Rosario or the Luis Peña preserve, whichever the captain judges better that morning.
Updated 10 October 2026
In shortThis is a 6-hour catamaran day from Puerto del Rey Marina in Fajardo: about 50 minutes of cruising, 1.5 hours anchored over a reef off Culebra's west coast, then an afternoon on a beach the captain picks for the day's conditions. Lunch, beverages and snorkel gear are included, and the day runs in English. It suits travellers staying near Fajardo who want a big boat, food on board and no ferry logistics to manage.
6 htour length
from $180per adult
★ 4.62722 reviews
up to 60people per group
What Carlos Rosario beach Culebra snorkeling means on this catamaran
The reef stop is Carlos Rosario or the Luis Peña underwater nature preserve, and the captain decides which one on the day according to the weather and the sea. Nobody can promise you Carlos Rosario in advance. Both sit along the sheltered southwest side of the island, between the Flamenco Oeste peninsula and Punta de Vapor, which is why the crew heads that way when the trade winds pick up.
The crossing from Puerto del Rey Marina takes about 50 minutes on a high-speed catamaran. The boat anchors for roughly 1.5 hours of snorkeling, then lunch is served on board: a deli-style buffet with sodas, juices, water and local beer. Snorkel gear is part of the price, so you do not need to carry mask and fins over from the mainland.
Carlos Rosario is the reef most Culebra regulars rate highest, and arriving by boat solves its two real problems. There is no road to it and no facilities of any kind, so the alternative on foot is a 20 to 30 minute walk of just under a mile over a hot hill from the back left corner of the Flamenco parking lot, on a path with rocks and thorns and a refuge warning about unexploded ordnance from the Navy-era ranges. Currents run strong in places there and no beach on this side of the island has lifeguards, so stay with the group and the crew's briefing.
The whole of this coast sits inside the Canal de Luis Peña Natural Reserve, the first no-take marine protected area in Puerto Rico, roughly 1,208 acres designated in 1999. Nothing comes out of the water: no shells, no coral, no fish. Any contact damages coral, even a hand or a fin brushing it, the seagrass beds are designated critical habitat and must not be stood on, and NOAA guidance asks snorkelers to keep at least 50 yards from sea turtles without touching or following them.
The afternoon is spent at a second stop about 20 minutes away, again chosen by the captain. Most often that is Flamenco, the mile-long horseshoe with restrooms, showers, picnic tables and food kiosks, or the half-mile beach on Culebrita, the islet off Culebra's east coast with views across to St Thomas. Culebrita has no facilities and no lifeguards, and the 19th-century Spanish-era lighthouse above it is closed to the public.
Culebra Snorkeling Tour by Catamaran from Fajardo
Six hours out of Puerto del Rey Marina, with a reef stop at Carlos Rosario or the Luis Peña preserve, a deli-style lunch buffet, sodas, juices, water and local beer, and snorkel gear on board. Check-in is 45 minutes before departure.
East Island Excursions After roughly 50 minutes of cruising the catamaran anchors at a reef off Culebra's western shore, either Carlos Rosario or the Luis Peña underwater nature preserve, for about 1.5 hours of snorkeling followed by a light lunch. Then it is 20 minutes to a quieter Culebra beach, where the rest of the afternoon goes to swimming, snorkeling, beachcombing or sunbathing. Underwater cameras and sunscreen are sold on board. The captain chooses that second beach for the day's conditions, usually Flamenco or the half-mile beach on Culebrita, the small islet off Culebra's east coast with views out to St Thomas.
Photos: ours and the tour operator's
What is included
Included
Beverages: sodas, juices, water and local beer
Lunch
Use of snorkel equipment
Not included
Gratuities
Hotel pickup and drop-off
Meeting point, pickup and cancellation
Meeting point: if you are driving or arranging your own transport, meet the crew at Puerto del Rey Marina 45 minutes before departure for check-in. Parking is available at the marina close to the boat departure area.
Hotel pickup and drop-off is not included on this tour.
Cancellation: for a full refund, cancel at least 24 hours before the scheduled departure time.
Ages: child 4–11, adult 12+
Other boats for Carlos Rosario beach Culebra snorkeling
The catamaran on this page carries up to 60 people and has the highest review count of the trips listed here, so take it if you want the classic big-boat day with a lunch buffet and beer included. The power boat with open bar runs the same 6 hours in a smaller group at a higher starting price and a higher rating. The deli-buffet day lasts 7 hours and starts lowest, and it is the one to compare if you are watching the budget or need a dietary option arranged in advance.
Tour
Length
From
Rating
Culebra Snorkeling Tour by Catamaran from Fajardo (this page)
Take this catamaran if you are staying near Fajardo
Drive to Puerto del Rey Marina, check in 45 minutes early and spend the day on the water with lunch and gear handled. If you have no car on the mainland and only one day, the ferry-based turtle and Flamenco trip from Ceiba fits better; if you want a marine biologist and paddle boards, take the 7-hour interpretive day; if you need vegan or gluten-free food, take the deli-buffet trip and request it in advance. Cancel at least 24 hours before departure for a full refund.
