Booking choice: The Turtle Cove catamaran, from $119 per person. Check dates Tour details
Every trip below includes snorkel gear and is priced per person on Viator, in USD. The cheapest is a guided snorkel from the beach; the most expensive are 12-person boats with a beach stop.
Prices are from the live listings in October 2026 and move with dates and availability, so the checkout price is the one that counts. On 7 October 2026 the Seas the Day listing showed a temporary sale price of $128 against its regular $160.
The quick answer
The VI Cat's Buck Island sail is from $119 per person with gear, snacks and unlimited drinks, and children 3 to 12 pay less. Small-group boats for up to 12 cost $159 to $160. The cheapest turtle snorkel is $89 from the shore. Gratuities and transport to the dock are extra on all of them.
How much is a catamaran tour in St Thomas?
From $119 per person for the VI Cat's three-hour Buck Island sail, and from $119 to $160 for the other boat trips listed here.
| Trip | From (per person) | Length | Group limit | Rating |
|---|---|---|---|---|
| Turtle Cove catamaran | $119 | 3 hours | 65 | 4.8 (2,316) |
| Buck Island from the Westin | $119 | 5 hours | 80 | 4.2 (12) |
| Two-stop catamaran | $129 | 4 hours | 40 | No reviews yet |
| Small-group turtle snorkel | $159 | 4 hours | 12 | 4.9 (850) |
| Maho Bay sail with lunch | $159 | 5 hours | 40 | 4.9 (62) |
| Buck Island & Honeymoon Beach | $160 | 4 hours | 12 | 4.7 (725) |
Have a date in mind? The Turtle Cove sail cancels free up to 24 hours before.
Check dates for the Turtle Cove catamaranWhat does the $119 Buck Island sail include?
Snorkel gear (mask, snorkel, vest and fins), snacks, unlimited drinks with alcohol after the swim, and a local guide.
It does not include transport to the Marriott's Frenchman's Cove dock, gratuities or the souvenir shirts sold on board. Guests describe the snacks as light, so eat before you go.
What do the small-group boats add?
You pay about $40 more for a boat of 12 instead of up to 65, an in-water guide on the Someday trip, and a beach stop.
Someday Charters includes a snorkel guide, snacks and an open bar after the swim; Seas the Day includes soda, water and alcoholic drinks. Lunch at Honeymoon Beach is not included on the Seas the Day trip.
Prefer a quieter boat? Someday Charters caps the group at 12 and guides you in the water.
Explore the small-group turtle snorkel Tour detailsDo children pay less?
On the VI Cat, yes: children 3 to 12 pay a discounted rate. Discounts and age bands differ by operator.
The Westin, Maho Bay and national park trips also discount children. The Someday boats count anyone under 18 as a child, so check the price at checkout. See St Thomas snorkeling with kids.
What costs extra on the day?
Gratuities, transport to the dock and, on most trips, lunch.
Operators suggest a tip for the crew, and two listings here put it at 15 to 20 percent. Parking costs extra at the resort docks: the Westin listing mentions $10 per vehicle and the Ritz-Carlton listing $30. Underwater photos are sold separately on some trips.
What is the cheapest way to snorkel with turtles?
The guided beach snorkel that meets at Lindbergh Bay, from $89 per person.
It lasts about two hours, takes up to 12 people, needs at least two adults per booking and suits snorkelers aged 5 and over. The national park snorkel by boat from Red Hook is from $90.
Budget first? The shore snorkel is the lowest price on this site.
Check dates for the shore turtle snorkelHow does the $119 sail rate with guests?
The VI Cat rates 4.8 from over 2,000 reviews, and gear, snacks and drinks are in the price.
The main trade-off is company: up to 65 guests and a group snorkel. If that matters more than $40, book a 12-person boat.
Frequently asked questions
Are drinks included on St Thomas catamaran tours?
On the VI Cat, yes: unlimited drinks, with alcohol only after the in-water part and only for guests 21 and over. Most other boats here include an open bar after snorkeling too.
Is it cheaper to book a catamaran direct?
Viator's from-price comes with free cancellation up to 24 hours before. The VI Cat's own policy text asks for 72 hours' notice, so on cancellation terms the Viator booking is the more flexible one.
Do I need to tip the crew?
Tips are not included on any trip here, and operators suggest one. Two listings mention 15 to 20 percent.
Ready to book
Choose your boat
Every option here can be cancelled free up to 24 hours before on Viator. Prices are per person, in USD, and move with the season.
Buck Island Turtle Cove Catamaran Sail
- Sail to Turtle Cove at Buck Island National Wildlife Refuge (you snorkel; nobody lands on the island)
- Snorkel gear: mask, snorkel, snorkel vest and fins
- Snacks and unlimited drinks; alcohol only after the in-water part
Small-Group Turtle Snorkel & Honeymoon Beach
- Professional crew and an in-water snorkeling guide
- Snorkel gear, a boarding ladder and a bathroom on board
- Snacks; open bar after the in-water activities
Semi-Private Buck Island & Honeymoon Beach
- Snorkel stop at Little Buck Island, then Honeymoon Beach
- Snorkel gear, soda, bottled water and alcoholic drinks
- Group limit 12; infants ride on laps
