Available languages
2 hours
Mobile ticket
Discover St Maarten’s one-of-a-kind underwater sculpture park, Under SXM, with the people who know it best — the creators, builders, and owners of the park itself. This 2-hour adventure begins with a short scenic 10 minute boat ride from Great Bay to Little Bay, where over 300 sculptures transform the seafloor into a breathtaking gallery teeming with marine life.
Your expert guide will join you in the water, sharing insider stories about the design, build, and installation of the park, while also pointing out fascinating sea life along the way. Snorkel gear and safety floats are provided, and optional digital underwater photos can be purchased onboard to capture your memories.
With three tours daily at 9am, 11.30am & 2pm and a meeting point just a 10-15 minute walk from the cruise ship terminal, this experience is designed to be easy, memorable, and stress-free. We guarantee you’ll always be back to your cruise ship or your sun lounger on time.
Suitable for all physical fitness levels
not recommended for non-swimmers
For a full refund, cancel at least 24 hours before the scheduled departure time.
Under SXM
Our snorkel spot location - 300 artificial reef sculptures celebrating the history and culture of St Maarten. These sculptures are at a depth of 15 feet below you, allowing our guests to float simply above and watch the marine life below.
Cruise-Friendly Location – Only a 15 minute walk from the cruise ship terminal to our meeting point
Easy Meeting Point – Find us at the two blue sculptures in Bobby’s Marina, Philipsburg
300 Underwater Sculptures & Marine Life Encounters with our expert guide
Quick & Scenic Boat Ride – Just 10 minutes to reach our world-famous underwater sculpture park
2 hour snorkel tour – Relax and enjoy; we’ll have you back on time, stress-free
Created and run by the park’s original designers, builders, and owner
Digital Underwater Photos – purchase onboard: professional digital shots of you and your family
All Gear & Safety Floats Provided – Snorkelling equipment and floating devices included for safety
Alcoholic Beverages
Meals
Bottled water
We do not provide road transportation to get to the boat pick up location in Philipsburg
108 reviews
Total reviews and rating from Viator & Tripadvisor
adelinel833,Apr 17, 2026
- Review from Tripadvisor
A top team, a fabulous family diving experience. We will bring this beautiful souvenir in our luggage. Thank you very much to Derek and Davis
FranckM58,Apr 17, 2026
- Review from Tripadvisor
Top activity. To do. The sculptures are all beautiful. The staff at the top
Bradley C,Apr 11, 2026
- Review from Viator
Great crew, about 45 min snorkel time. I was not expecting much, but it was actually an amazing time. The 300 underwater statues were really cool, lots of fish.
Ashley D,Apr 10, 2026
- Review from Viator
This was an amazing excursion. We loved having the underwater park to ourselves so you didn’t have a lot of snorkelers crowding you like some of the other tours. Our guides were absolutely fantastic!! The history of the underwater park was so neat! Best excursion of our cruise!
Ivorlyn P,Apr 8, 2026
- Review from Viator
The experience was new and captivating. Although I typically avoid deep waters, the helpful captain encouraged me to participate. My son and I saw many types of fish and even turtles. The statues play a vital role in creating homes and food for marine life, and I appreciate what they do for the ocean. Everyone should have the chance to enjoy such an adventure..
X9647SOlarac,Apr 7, 2026
- Review from Tripadvisor
This was a perfect first snorkelling experience for my children aged 6 and 8, easy for them to manage and fun for us as parents too. Our guides from Under SXM were informative and helpful and the meeting point was easy to find from our cruise ship dock. Ours was a trip of 16 people in total, which was nice and small. The boat wouldn’t have space for many more so I assume this is the usual sort of number. As we arrived at the snorkel site, however, a much bigger boat of people had just got into the water, which I think meant that fewer fish stayed around, but the group quickly left and it felt like we could see many more fish after that! Overall it was a nicely paced and good value trip and I would recommend it, especially for less experienced snorkellers.
sousout586,Apr 6, 2026
- Review from Tripadvisor
I had an amazing experience snorkeling with Under SXM! The sculptures were very visible, and the fish were abundant and colorful. The guides were knowledgeable, friendly, and provided great information throughout the tour. The highlight of my day and my vacation was having the chance to observe a sea turtle for a few minutes. Truly unforgettable!
kevine343,Apr 6, 2026
- Review from Tripadvisor
Pretty neat experience and some exposure to the history of St. Martin. Had over 40 minutes of snorkeling time, which seemed like a good amount for what was there. One of our boys liked this better than the other snorkeling adventure.
Irina M,Apr 2, 2026
- Review from Viator
We took the first morning tour and the visibility was perfect!! We saw all the sculptures clearly and plenty of fish swimming around, even turtles! My daughter loved the tour and swimming around, easy enough for a 14 year old trying it for the first time. The gear was provided, the boat ride was super nice. Our tour guides were the best, great stories about the sculpture park and the island history. I would say the tour was the highlight of our trip! Definitely recommend the photo package, it’s worth it!
Rickardotrips,Apr 2, 2026
- Review from Tripadvisor
A fantastic experience, well organised, the information provided during the boat ride was very good. Our kids (11 & 13) loved it too.
Operated by Under SXM