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
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.
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.
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)
Cancellation Policy
For a full refund, cancel at least 24 hours before the scheduled departure time.
Reviews
1,017 reviews
Total reviews and rating from Viator & Tripadvisor
Great Experience
S8732PWoliverc,Jun 1, 2026
- Review from Tripadvisor
5.00It was an amazing experience and our guide was great. I would definitely recommend.
Best paddling and snorkling and hike was amazing and very knowledgeable
153wyattc,May 31, 2026
- Review from Tripadvisor
5.00This was awesome. We came here for our honeymoon. Jonathan was the best!!!
Such a fun experience!
70keshiaa,May 30, 2026
- Review from Tripadvisor
5.00We thoroughly enjoyed our afternoon! Our tour guide ( I believe his name was Brett!- it happened to be his birthday on the day of our trip !) was great, friendly, and made the trip fun. We started our trip with a kayak journey through the mangrove trees. Our guide pointed out some animals and explained some history and environmental/local importance to us for the area. He never rushed us even when a couple of the participants was having a very tough time kayaking. We next did an easy hike/walk where more nature/environmental and historical significance was explained. We saw lots of hermit crabs and even got to race them! Our guide pointed out land marks on the island, the coastline, and some wildlife like sea urchin and jelly fish and let us hold them if we wanted. He always offered and stopped for photo opps for us along the way as well. We next did snorkeling and of course got to see more fish and underwater life. My husband even saw a sting ray a little away from us! We followed this up by kayaking back to our starting point. I will admit I’m more of a lie on the beach kind of person on vacation. But I’m so glad I got out of my comfort zone. I’d do this again in a heart beat. Our guide was patient with our group of beginners. He really gave great info, support, education, and made the trip fun.
Must go!
jessjK3224LC,May 30, 2026
- Review from Tripadvisor
5.00Great experience! Learned and explored cas Kay and was able to touch and see animals I’ve never heard of before. Tour guides have great insight and energy. Shout out Swish!
We had so much fun and so much wildlife to see!
daynag713,May 28, 2026
- Review from Tripadvisor
5.00Such a fun activity! We saw so many fish, hermit crabs, jellyfish and even a spotted stingray! Alonzo was so kind and knowledgeable about the local ecosystem! I could not recommend a better activity to do while you are in St. Thomas!
Amazing time kayaking!
NorthStar23412376294,May 27, 2026
- Review from Tripadvisor
5.00Alonzo potter harrka were our guides and they were amazing!! So so much fun we got to see crabs and star fish and much more! It was so fun kayaking and snorkeling and hiking!
Senior trip
Heather M,May 27, 2026
- Review from Tripadvisor
5.00Alonzo was awesome. Certainly patient and informational to the things we saw . Weather was great and got to see a lot of things . Very pleased with visit today
Snorkel, kayak, hiking adventure
345jacer,May 27, 2026
- Review from Tripadvisor
5.00Swish was an amazing tour guide. Lots of kayaking and saw amazing wildlife. Stingray, tropical fish, sea urchins, hermit crabs, sharks (from a safe distance) and plenty other animals as well. 10/10 recommend. Very friendly people!!
Hard work but totally worth it :)
mckenziew630,May 26, 2026
- Review from Tripadvisor
5.00Alonzo was great! Had an amazing time :))
Fun adventure
Kira L,May 21, 2026
- Review from Tripadvisor
5.00Had a great time tour guide Alfonso was awesome
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Operated by Virgin Islands Ecotours