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Spend the day on your own 50' Luxury Catamaran Yacht. This price is all inclusive for the Yacht, up to 12 guests. You can select a half or full day charter. Visit the islands of St. Thomas, St. John and surrounding cays.
SY Sirena is a 50′ Luxury catamaran with a spacious salon that opens on to an expansive back deck with seating and dining. The bow of the boat offers relaxing seating with bean bag chairs and large trampolines for group conversations, tanning or intense turtle, dolphin watching.
There are plenty of water toys to keep you entertained, from snorkeling equipment to relaxing floats. Price includes ice, soda, beer and rum punch. You and our captain will design an itinerary that best meets the needs of your group.
*Please note the BVI is not available on this vessel, but a visit to the BVI can be booked under Product Codes 111649P24 or 111649P25. Departure from American Yacht Harbor in Red Hook; pickup from Cruz Bay, STJ possible with advance request after booking.
Service animals allowed
Public transportation options are available nearby
Infants and small children can ride in a pram or stroller
Suitable for all physical fitness levels
Seas the Day USVI is dedicated to a healthy experience. We have partnered with RayBiotech and all of our Captains and Crew are tested for Covid 19 each month. You will see each wearing a Covid Free bracelet. Each of our vessels are sanitized after each trip using established CDC and WHO guidelines. Since this is primarily an outdoor activity, masks are not required but can be worn by our guests if preferred.
Secret Harbour
With a private charter, you can design your own itinerary. Spend as much time as you desire at each location. However, we always recommend at least 1.5 hours at each stop to truly enjoy the waters and activities.
Brewer's Bay
With a private charter, you can design your own itinerary. Spend as much time as you desire at each location. However, we always recommend at least 1.5 hours at each stop to truly enjoy the waters and activities.
Use of Floats
Soda/Pop
Use of Snorkelling equipment
We practice eco-friendly habits aboard and all water provided by Virgin H2O.
Beer and Seas the Day Signature Rum Punch are Included
Restroom on board
Tips for Captain & Crew. For exceptional service, it is customary to tip 15-20%.
Lunch is excluded but can be purchased at many locations.
Visiting the BVI
For a full refund, cancel at least 24 hours before the scheduled departure time.
677 đánh giá
Tổng số đánh giá và xếp hạng từ Viator & TripAdvisor
Courtney P,28 thg 6, 2026
- Đánh giá từ Tripadvisor
From start to finish, our private boat day was absolutely incredible. Booking was smooth, communication was prompt, and every detail was thoughtfully handled. Our captain, JW and mate, Chloe were professional, friendly, and so knowledgeable about St. John’s waters. We felt safe the entire time and completely spoiled. The boat itself was spotless, comfortable, and well-equipped with shade, floats, snorkel gear, towels, and a great sound system. We appreciated the cooler stocked with ice and drinks. Highlights included exploring vibrant reefs and a calm swim turquoise shallows. JW customized the itinerary based on our wish list and the day’s conditions, timing each stop perfectly to avoid crowds. We even discovered a tucked-away beach we’d never have found on our own. Lunch at Lovango was delicious and easy—docked right up and were back on the water in no time. Throughout the day, the crew shared local history, pointed out wildlife, snapped family photos for us, and kept the vibe relaxed and fun.
kammyt2026,28 thg 6, 2026
- Đánh giá từ Tripadvisor
Caption and crew were amazing! Helpful and give us history as we boated along the islands. Snorkeling was also great. It was a good afternoon!
January L,28 thg 6, 2026
- Đánh giá từ Viator
Great private experience with our multigenerational family of 6. Highly recommend. Group tours are way too crazy and hassle-filled.
Margaret S,25 thg 6, 2026
- Đánh giá từ Viator
If you have young children, you need to be responsible for them in the water. The crew does not monitor the swimmers.
Ashley F,14 thg 6, 2026
- Đánh giá từ Viator
We booked this 50’ catamaran excursion for our family of 11 to celebrate our parents’ wedding anniversary. Unfortunately, we arrived at the pier only to find out that the catamaran was not available. We only noticed this when the captain walked us to a speedboat and told us to jump in. Imagine our surprise. Seas the Day said that they notified us through a Viator message the day before, but we were on a cruise with limited internet access and had specifically communicated that to them. When they texted us that evening regarding waivers, no mention was made that the catamaran had been replaced. The staff later admitted they had only sent a Viator message and could not provide evidence that a text had been sent. The complimentary drinks did very little to offset the additional expenses and inconvenience we incurred. In addition to the transportation costs to the port, we incurred several other unexpected expenses, including ferry and taxi fares as we attempted to regroup and salvage the day. By the end, our out-of-pocket costs approached $1,000, making the refund far less meaningful than it may appear. Most disappointing was seeing our children, ages 3, 8, and 10, miss out on the excursion they had been looking forward to most. Mechanical issues happen, but better communication and transparency would have made a significant difference and would have allowed us to make informed decisions before spending hundreds of dollars traveling to the port. Strongly do not recommend using Seas the Day.
amynL2803QF,2 thg 6, 2026
- Đánh giá từ Tripadvisor
Captain and crew Olivia were awesome! Super informative and attentive. He even played our request of Metal music:)

R7664SPbobv,1 thg 6, 2026
- Đánh giá từ Tripadvisor
Incredible trip! We booked a multi-generational half day journey onboard her and it was just perfect. Captain Alex and Lindsey were absolutely incredible. They took great care of my older parents and teenage children. Excellent communication, easy to work with and super easy going. We had 7 people--if you do the math, this is the same price (or cheaper) than booking an overpriced ship excursion. Just note--the taxi ride to the marina is tough. Be prepared for a crazy journey (obviously not Alex or Lindsey's faulty). Overall, just a fantastic day!
loulouriviere,1 thg 6, 2026
- Đánh giá từ Tripadvisor
The itinerary was great, the staff was friendly and helpful.
Jackie M,31 thg 5, 2026
- Đánh giá từ Viator
Diving spots could of been better Afer looking at brochure you expect ed more Did not enjoy swimming to take bar
Michelle H,31 thg 5, 2026
- Đánh giá từ Viator
Booked weeks in advance. The boat had mechanical issues, however the company waited till 9pm the night before our sail to inform us it was cancelled. There was no time to book an alternative option. Even though they refunded us without issues, we were really looking forward to this adventure. I requested they find us alternatives but the first would have required us to cross the island with less than an hour notice and cost about $500 in round trip taxi rides for our group of 10 and the second was a boat about half the size and with a small craft advisory we didn’t real safe. Things happen but communicating a cancellation at 9 pm the night before is unacceptable in my opinion!
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