Snorkeling St. Croix: Buck Island, Frederiksted Pier and 8 more spots

St. Croix's best snorkeling, from the Buck Island underwater trail to seahorses under the Frederiksted Pier and the Cane Bay wall, with directions, levels and tours.

By SnorkelAtlas Editorial TeamUpdated 4 min read

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Rocky Caribbean beach with green hills and calm blue water
On this page
  1. Map of St. Croix snorkel spots
  2. Buck Island Reef National Monument
  3. West End: Frederiksted
  4. North Shore
  5. Christiansted and the East End
  6. Practical tips

St. Croix is the largest and quietest of the US Virgin Islands, and it has some of the most varied snorkeling in the Caribbean: an underwater national monument, a pier full of seahorses and a shore reef that drops into a 3,000-foot wall. Here are the ten best spots and how to reach them.

Map of St. Croix snorkel spots

Pins are approximate; use the directions link on each spot card.

Buck Island Reef National Monument

2

Buck Island Reef National Monument

1.5 miles off the northeast coast

Level
2 of 5
Entry
Boat only
Depth
3–30 ft
Visibility
50–80 ft
Best months
Year-round; calmest April to August
Facilities
Restrooms and picnic area at West Beach
Fees and permits
National park fee, usually in the tour price
What you'll see
Elkhorn coral, turtles, rays, an underwater marked trail

How to get there

Licensed boats leave Christiansted harbor and Green Cay Marina. Most trips stop at the underwater trail on the east end and the beach on the west end.

17.789° N, 64.620° WDirections

Buck Island's barrier reef protects a lagoon with an underwater snorkel trail marked by plaques on the seabed. Most half-day trips snorkel the trail, then stop at West Beach for a swim. Full-day trips add more reef stops and lunch.

TourLeaves fromTimeGroupFromBook
Buck Island private charterViator: private, park fees includedChristianstedHalf dayUp to 6—Check availability
Buck Island Reef toursViator: the classic tripChristianstedHalf to full dayVaries—See all tours
All US Virgin Islands toursViator: turtle and pier snorkelsUSVIVariesVaries—See all tours

West End: Frederiksted

2

Frederiksted Pier

West End, Frederiksted

Level
2 of 5
Entry
Shore, sandy beach next to the pier
Depth
10–35 ft
Visibility
Good
Best months
Year-round; avoid cruise days
Facilities
Restaurants in town
Fees and permits
Free
What you'll see
Seahorses, frogfish, octopus, turtles, tarpon at night

How to get there

Enter from the beach just north of the pier in Frederiksted. Snorkeling under the pier is not allowed when a cruise ship is docked; check the schedule. Popular at night with a light and a guide.

17.715° N, 64.885° WDirections

1

Rainbow Beach

Near Frederiksted

Level
1 of 5
Entry
Shore, sandy
Depth
3–15 ft
Visibility
Good
Best months
Year-round
Facilities
Beach bar, chairs
Fees and permits
Free
What you'll see
Reef fish along the rocks, turtles

How to get there

A mile north of Frederiksted on Route 63. Calm, family-friendly beach with a bar.

17.734° N, 64.881° WDirections

The Frederiksted Pier is one of the best macro snorkels in the Caribbean. Look closely at the pilings for seahorses, frogfish and sponges. When a cruise ship is docked, snorkeling under the pier is not allowed.

North Shore

2

Cane Bay

North Shore

Level
2 of 5
Entry
Shore, rocky beach
Depth
5 ft to the wall drop-off
Visibility
50–80 ft
Best months
Calm days; north swell in winter
Facilities
Bars, dive shops
Fees and permits
Free
What you'll see
Turtles, eagle rays, the Cane Bay Wall

How to get there

On North Shore Road (Route 80). Park along the road by the beach bars. The reef drops off about 100 yards out; stay over the shallows unless you are a strong swimmer.

17.774° N, 64.811° WDirections

2

Davis Bay

South of Cane Bay

Level
2 of 5
Entry
Shore, sandy
Depth
5–30 ft
Visibility
Good
Best months
Calm days
Facilities
Resort nearby
Fees and permits
Free
What you'll see
Reef along the points

How to get there

Next to the Carambola resort; use the public access. Waves can be strong; snorkel only on flat days.

17.766° N, 64.836° WDirections

3

Salt River Bay

North Shore

Level
3 of 5
Entry
Boat or kayak
Depth
Varies
Visibility
Variable
Best months
Calm days
Facilities
None
Fees and permits
Park area
What you'll see
Mangroves, bioluminescence at night (kayak)

How to get there

A national historical park and ecological preserve. Best seen on a kayak tour; the bay is better for bioluminescence than snorkeling.

17.778° N, 64.758° WDirections

Christiansted and the East End

1

Protestant Cay

Christiansted harbor

Level
1 of 5
Entry
Shore, sandy
Depth
3–15 ft
Visibility
Fair
Best months
Year-round
Facilities
Hotel beach bar
Fees and permits
Small ferry fare
What you'll see
Reef fish, rays

How to get there

Short ferry from the Christiansted boardwalk to the tiny island. Good for a quick swim.

17.748° N, 64.703° WDirections

2

Shoys Beach

East of Christiansted

Level
2 of 5
Entry
Shore, sandy
Depth
3–20 ft
Visibility
Good
Best months
Calm days
Facilities
None
Fees and permits
Free
What you'll see
Reef fish, turtles

How to get there

Through the Shoys estate gate near The Buccaneer; tell the guard you are going to the public beach. Snorkel the reef at the east end.

17.761° N, 64.677° WDirections

1

Chenay Bay

East of Christiansted

Level
1 of 5
Entry
Shore, sandy
Depth
3–15 ft
Visibility
Good
Best months
Year-round
Facilities
Beach bar, rentals
Fees and permits
Free
What you'll see
Reef fish, seagrass, turtles

How to get there

Off East End Road (Route 82). Calm and shallow, good for beginners and kids.

17.764° N, 64.663° WDirections

3

Jack and Isaac Bays

East End Marine Park

Level
3 of 5
Entry
Shore after a hike
Depth
3–20 ft
Visibility
Excellent
Best months
Calm days
Facilities
None
Fees and permits
Free
What you'll see
Healthy reef, turtles, rays; turtle nesting beach

How to get there

Hike about 30 minutes from Point Udall or the Isaac Bay trailhead in the East End. Bring water and shade; there are no facilities.

17.727° N, 64.590° WDirections

Practical tips

  • Rent a car. St. Croix is spread out and taxis are expensive.
  • Check the cruise schedule before planning a pier snorkel.
  • North shore in winter: north swells reach Cane Bay and Davis Bay; go to the West End instead.
  • Sunscreen: the USVI bans oxybenzone, octinoxate and octocrylene. Use mineral sunscreen; see best reef-safe sunscreen.
  • Getting there: direct flights from several US cities land at Henry E. Rohlsen Airport. A seaplane links Christiansted with St. Thomas.

Visiting more than one island? See snorkeling St. Thomas and St. John and our ranking of the best Caribbean snorkeling.

Questions people ask

Is Buck Island worth it?
Yes. It is one of only a few underwater national monuments in the US, with a marked snorkel trail and protected elkhorn coral.
Can you snorkel the Frederiksted Pier?
Yes, when no cruise ship is docked. Day snorkels show seahorses, frogfish and octopus; night snorkels with a guide are even better.
Where is the best shore snorkeling on St. Croix?
Cane Bay for the reef and wall, Rainbow Beach and Chenay Bay for calm, easy snorkeling.
What sunscreen is allowed in the US Virgin Islands?
The USVI bans sunscreens containing oxybenzone, octinoxate and octocrylene. Mineral sunscreens with non-nano zinc oxide are fine.

How we write these guides. We build every guide from official sources (park services, state agencies, operators), current tour listings and reader reports. We never claim to have tested gear we have not used. Spot something out of date? Tell us.