Cas Cay - Kayak Hike and Snorkel Adventure
Overview
Available languages
3 hours
Mobile ticket
This award winning tour offers a unique, multi-eco experience. Kayak among the many small islands that make up St. Thomas' Mangrove Lagoon, including the pristine Cas Cay. This wildlife sanctuary and marine reserve is world famous for its winding, shallow waterways, beautiful mangrove trees with nesting birds, and colorful marine life. Hike and explore Cas Cay! Try your luck with a hermit crab race in a forest with an unusual community of thousands of hermit crabs. An eight minute walk along a level sandy, coral and shell rubble trail leads you to a dramatic area of cliffs with breathtaking views, tidal pools and a rare geologic blowhole. Relax and enjoy the sounds of the splashing water and the beautiful rock and cliff formations. Your guide will show you many new and interesting creatures and unforgettable places. After an eight minute hike back to the kayaks, you will don your mask, snorkel and life jacket and snorkel with colorful fish and sting rays.
Additional Info
Service animals allowed
Travelers should have at least a moderate level of physical fitness
Please arrive at Virgin Islands Ecotours 15 minutes prior to your tour time.
At Virgin Islands Ecotours you will find a gift shop, restroom facilities, dressing rooms and lockers for your valuables.
The hike is 8 minutes in each direction on an uneven, level sandy trail mixed with coral rubble
Please bring a bathing suit and towel, shoes that can get wet, and sun protection including sunscreen, sunglasses, hats, etc.
Minimum age is 2 years old.
additional sanitation measures taken on site for COVID-19
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
What To Expect
- Departs from Mangrove Lagoon Marina on St. Thomas - Kayak through many small islands made up of red mangrove trees - Hike and explore Cas Cay, a pristine, deserted island complete with tidal pools, volcanic cliffs, and a geological blowhole - Snorkel in a coral fringed mangrove nursery Please note: Transportation to the meeting point is not included.
What‘s Included
Water
Snacks
Use of snorkel equipment, kayak paddles, masks, life jackets and mesh bag to hold items that can get wet.
safety briefing and kayak/paddling/snorkeling instruction
lockers, dressing rooms, and toilet facilities
Gratuities
Photos (available to purchase)
Options
Cas Cay 9:30 AM
Tour
Cas Cay 1:30pm
3hr Kayak, Hike, and Snorkel Tour explore the Mangrove Lagoon and Cas Cay. Depart from our Mangrove Lagoon Marina at 1:30pm. Please arrive at least 15 minutes prior to departure time.
Reviews
994 reviews
Total reviews and rating from Viator & Tripadvisor
amazing experience!
jensons835,Apr 19, 2026
- Review from Tripadvisor
5.00it was super fun and a very good experience to remember forever and both the tour guides were amazing and really nice, really helpful! alonzo was really nice and amazing and anderson was also really nice and helpful thy were both amazing and really really kind! 5/5 experience!
One of the best ever!!
R9372STchriss,Apr 19, 2026
- Review from Tripadvisor
5.00Super worth the money! The guides, Alonso and Araca were so friendly and let us experience wildlife. They were so knowledgeable and and smart! It was a very personal and wonderful experience!!!
Snorkeling, hiking, kayaking
R7185KNemersons,Apr 19, 2026
- Review from Tripadvisor
4.00it was super fun and cool to see all the different things
very fun
FarAway45841721600,Apr 19, 2026
- Review from Tripadvisor
5.00Alonzo was very funny and made the trip and all of the work outs fun!
Super fun!
769katis,Apr 19, 2026
- Review from Tripadvisor
5.00Alonzo was our guide and he made it an amazing experience! Definitely one of the best excursions i’ve done!
Great excursion
990bradyp,Apr 16, 2026
- Review from Tripadvisor
5.00Alonzo and Rude Boy were the best tour guides, learned a lot, had a lot of fun. Great excursion
St Thomas Adventure
nicolehR3497ZD,Apr 16, 2026
- Review from Tripadvisor
5.00Alonso and Rude Boy were great guides with lots of knowledge. They gave us an amazing experience with great photo opportunities. With so much knowledge and care this is a trip we would absolutely do again.
No turtles, no fish, boring hike, DO NOT BOOK
REINA L,Apr 12, 2026
- Review from Viator
2.00The tour guide was friendly, but the experience overall was very disappointing. A large portion of the time was spent on a short gravel path (“hike”) where the guide went into lengthy REPETITIVE explanations about hermit crabs and a poisonous tree. While initially interesting, the same points were repeated multiple times (same sentence at least 7 times), which made that part feel drawn out and not engaging. Because so much time was spent there, we had very limited time to snorkel. Unfortunately, the snorkeling itself was underwhelming—we saw no turtles and only a 2-3 colorful fish, with most of the area covered in seaweed. Several people in the group seemed disappointed by the lack of marine life. When this was mentioned, the explanation given was that the fish had “been eaten recently,” which didn’t feel very reassuring. Overall, while the guide was personable, the tour felt poorly paced and did not deliver on the snorkeling experience we were hoping for.
John was a great guide...
Matt M,Apr 7, 2026
- Review from Viator
5.00John was a great guide and very knowledgeable for the tour. This was pretty informative including some details about fauna and flora as well as some history. The area to snorkel was great and saw schools of huge Tarpon I believe. Plus a Stingray and other sea life. I would highly recommend this excursion.
Best St Johns Excursion
Culture65703,Apr 4, 2026
- Review from Tripadvisor
5.00The guides were amazing. So friendly and knowledgeable. And fun!!!
From US$99.00
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Operated by Virgin Islands Ecotours