Buck Island Reef National Monument
Monument Protected Caribbean reef reserve with snorkeling and sea turtles
Marine national monument off St. Croix protecting coral reefs and turtle habitat, with an underwater snorkel trail; visitors reach the island by boat to snorkel, observe marine life and hike short shore paths.
Buck Island Reef National Monument is a protected marine area off the coast of St. Croix in the U.S. Virgin Islands that conserves coral reefs, seagrass beds and associated marine life. The monument centers on Buck Island and its surrounding coral reef and is managed to protect underwater habitats and support recreational snorkeling.
A marked underwater snorkel trail and visitor moorings concentrate recreational use and allow visitors to view reef formations and marine species while reducing damage to sensitive areas. The monument’s waters are a popular destination for snorkeling, diving and marine wildlife observation.
The monument was established to conserve near-shore reef ecosystems and to provide opportunities for public education and low-impact recreation. Ongoing management focuses on habitat protection, visitor regulation and scientific monitoring.
Buck Island sits off the northeast coast of St. Croix in the Caribbean and is reached by boat from the main island.
- Boat access and moorings: Accessible only by boat from St. Croix, with moorings provided to protect reefs and to regulate visitor access.
- NPS management: Managed by the U.S. National Park Service to protect coral reef, seagrass and marine habitat and to provide controlled public access for snorkeling and education.
What to See #
- Underwater snorkel trail: A small coral island and surrounding reef system with an underwater snorkel trail established to showcase coral formations and reef fish.
How to Get to Buck Island Reef National Monument #
Buck Island Reef National Monument (off St. Croix) is reached by boat from Christiansted, St. Croix. Tour operators and dive/snorkel boats depart Christiansted harbour; travel time across the bay to the island is typically on the order of tens of minutes depending on the boat and sea conditions.
On St. Croix, Christiansted is reached by car from the island’s roads (King’s Hill Road/Route 72 and local routes). Most departures board at Christiansted’s waterfront; tours include pickup information and Marina/harbour meeting points.
Tips for Visiting Buck Island Reef National Monument #
- Plan for an early morning boat trip from Christiansted (calm seas and clearer water for the snorkel trail), and book your licensed boat operator in advance-landing at Buck Island requires a boat.
- Make the underwater trail your priority when visibility is best; most operators time visits for morning light and fewer boats, so choose an early departure to avoid afternoons when more tours congregate.
- Respect park rules enforced by rangers and tour operators (buoyed snorkel trail, no-anchoring zones) - using a certified operator helps you see highlights without damaging coral or running afoul of regulations.
Best Time to Visit Buck Island Reef National Monument #
Best visited in the dry season (December-April) for calm seas, good visibility and lower storm risk for snorkeling and boat access.
Weather & Climate near Buck Island Reef National Monument #
Tropical climate with consistently warm temperatures year-round. Temperatures range from 22°C to 31°C. Abundant rainfall (1016 mm/year), wettest in November.
January
January is warm with highs of 28°C and lows of 22°C. Moderate rainfall (51 mm) and mostly sunny skies.
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February
February is warm with highs of 28°C and lows of 22°C. Moderate rainfall (37 mm) and mostly sunny skies.
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March
March is warm with highs of 29°C and lows of 22°C. Moderate rainfall (39 mm) and mostly sunny skies.
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April
April is warm with muggy conditions (dew point 22°C). Moderate rainfall (61 mm) and mostly sunny skies.
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May
May is warm with muggy conditions (dew point 23°C). Significant rainfall (101 mm) and partly cloudy skies.
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June
June is hot, feeling like 32°C due to high humidity. Moderate rainfall (58 mm) and partly cloudy skies.
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July
July is hot, feeling like 32°C due to high humidity. Moderate rainfall (68 mm).
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August
August is the hottest month, feeling like 32°C due to high humidity. Significant rainfall (111 mm).
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September
September is hot, feeling like 31°C due to high humidity. Significant rainfall (131 mm).
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October
October is hot, feeling like 30°C due to high humidity. Significant rainfall (126 mm).
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November
November is warm with muggy conditions (dew point 23°C). The wettest month with heavy rain (132 mm).
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December
December is warm with muggy conditions (dew point 22°C). Significant rainfall (101 mm) and mostly sunny skies.
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