Private Tour
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Mobile ticket
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.
For a full refund, cancel at least 24 hours before the scheduled departure time.
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
655 reviews
Total reviews and rating from Viator & Tripadvisor
Sherpa64217110482,Apr 20, 2026
- Review from Tripadvisor
A+++++ experience and service. Would do this 100 times over.
961mach,Apr 18, 2026
- Review from Tripadvisor
Exactly as advertised! Perfect day.
cyrindarella,Apr 11, 2026
- Review from Tripadvisor
We booked a 1/2 day excursion with Seas the Day while visiting St. Thomas for my sister's wedding. This was one of the most amazing experiences I have ever had (and my family agrees!). We were a group of 10 (I think and had a mix of adults and kids (ages 9-11). Captain Maddy and Olivia were so knowledgeable and made our day one to remember. My only regret is not booking the full day excursion I think, but the half day was perfect, too. For a slight bit more than the cost of the other catamarans (where you are shacked up with strangers), we got the whole boat to ourselves. They sent us a text ahead of time reminding us what to bring on the boat (they provide the snorkeling gear, a few soda options, a few bear options, and a delightful rum punch!) We brought coolers with drinks and snacks and had ourselves a delightful time; we got to bluetooth into the speakers and play our own music on the boat, and the rum punch they provided was AMAZING. During our excursion, we stopped at two locations to snorkel -- the first one had a shipwreck and we saw sea turtles, squid, various colorful fish, and even a nurse shark! The second location was a stone's throw from Little St. James (yes, THE island), which was pretty wild to see, but it had the most amazing coral reefs with lots of fish and urchins to take in. This by far was one of the most memorable experiences I have ever had and recommend it to anyone visiting St. Thomas!







Brian W,Apr 5, 2026
- Review from Viator
Great small group custom sail. Went to 2 great snorkeling spots and a beautiful place for lunch. Picked up snacks and our favorite wine at the store around the corner beforehand. JW and Edwardo were fantastic, providing us with an awesome luxury experience.
AJF140,Apr 4, 2026
- Review from Tripadvisor
This was an AMAZING experience!! We did a full day tour with our friends and kids while on Spring Break. JW & Eduardo were the best! They even made the safety talk at the beginning funny! They listened to what we had hoped to see and do that day and totally delivered! We got to three different snorkel sights and all were fabulous! We saw a ton of different fish and even saw turtles, rays, and a couple nurse sharks! We had our own snorkel masks but they were so helpful with our fins and got out other mask options when the kids wanted to try them. Speaking of kids…they were fantastic with them! We had six boys with ages 16-7 and they really took the time to chat with them, ask them questions, and answer the boys’ questions. We went to Lovango Resort for lunch, which was delicious and then to an amazing (and quiet!!) beach on St John. The service was amazing…both JW and Eduardo told us so much about where we were and what we were seeing and answered all our questions! The refreshments onboard were wonderful. Eduardo was there asking us what we needed right away. Overall it was definitely a highlight of our trip and we’d book again!!
alany727,Apr 3, 2026
- Review from Tripadvisor
Really great service. Very experienced captain and crew person. Well organized and efficient. They know the area and make it enjoyable for the guests.
T6236WKmaryh,Mar 30, 2026
- Review from Tripadvisor
We had a great day with Maddy and Chloe! We came in on a cruise ship and spent the entire day on the catamaran. The taxi price to get to the port is a bit ridiculous, $375 round-trip for 11 people. We saw turtles at our first snorkel spot and lots of colorful fish at our 2nd stop. Maddy and Chloe accommodated us by sailing around Epstein Island, We couldn’t have asked for a better day!






toddbQ6192QZ,Mar 28, 2026
- Review from Tripadvisor
Fantastic tour led by very friendly and accommodating crew. Captain JW and mate Liv made it a very easy, informative and fun day. We had our family together for the trip and everyone loved it. Great snorkeling and the time on the boat was at our pace so it was a very special day! Thanks JW and Liv!!
randreu,Mar 15, 2026
- Review from Tripadvisor
Chloe and Vic are absolutely amazing - very highly recommend!



mike m,Mar 14, 2026
- Review from Viator
Captain Alex and first mate Alicia were awesome. Everything we asked for was done. Captain and First mate were both very knowledgeable. Very impressed with the day . Felt like we had known them forever.
-15% off
From US$1,355.75Was US$1,595.00
Operated by Seas the Day Charters and Tours