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Meet at Virgin Islands Ecotours’ marina at the Mangrove Lagoon in St. Thomas. Climb aboard your two-person kayak and paddle through the narrow waterways between mangrove trees and small islands. Many birds make their nest in the trees and if you look up, you’ll have a chance to see blue herons, night herons, egrets, yellow warblers, hummingbirds, or even spot the endangered brown pelican. Look down into the clear water and you can see juvenile fish hiding among the roots where they school together to stay safe from potential predators.

 As you come to Cas Cay, the hiking portion of the tour begins. Explore the pristine, deserted, 15-acre island, which is a part of the larger Virgin Islands Park System. Reach vistas and breathtaking views from coral and shell beaches. Explore the mangrove forest on foot and even try your luck with a hermit crab race. The hike brings you to tidal pools, volcanic cliffs, and a unique geological blowhole, a favorite photographic opportunity.

After the eight minute hike through the forest back to your kayak, you will don your mask, snorkel and life jacket and begin your 45 minute guided snorkel in the show and protected waters of the mangrove lagoon. The edges of the water have the thousands of roots of the mangrove trees and when looking in there, you will find hundreds of baby fish. This is where they grow until they are big enough to return to live in the coral reef. In the snorkel area your guide will point out the marine life and explain what you will see. Keep on the look out for Lobsters, Eel, pufferfish, Angelfish, French Grunts and Yellow Tailed Snappers. It’s always a delight to see the stingrays, the spotted eagle rays and the shy turtles! 

After the snorkel portion of the tour, you will kayak back through the winding alleyways of the mangrove lagoon to the Virgin Islands Ecotours ecomarina.

Your guide will point out marine life and interpret the nuances and complexities of the diverse mangrove ecosystem. You will also receive snorkeling instruction for those who are inexperienced or who want extra tips to make the most of the experience exploring this underwater world.


Locations visited
Virgin Islands Ecotours
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.
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1 - 5 of 28 reviews
Reviewed 2 weeks ago via mobile
Breathtaking Adventure

Our group of 14 (6 parents and 8 kids ranging from teens to tweens) had a great 5-hour Cas Cay kayak, hike and snorkeling tour. Very unique experiences. Lots of of fun ecological and educational details but the locations are the real star. Such beautiful...More

Thank Bryan G
Reviewed 4 weeks ago
Something for Everyone

We went to St. Thomas on a cruise, but booked this excursion directly with the company rather than through the cruise ship. I've heard that you can end up going in a huge group if you do it through the ship, but we went in...More

Thank kcbren
Reviewed 4 weeks ago
Great tour!

Troy and the rest of the tour guides were great! Fun personalities and full of interesting information. We learned a lot and had fun!

Thank Maps760
Reviewed 2 July 2018
Great trip, informative and fun. Troy Willock was an excellent guide!

We booked through Carnival, which turned out to be a great idea because transportation was included! Pickup/transport was convenient and informative. The guide told us about the island as we drove. The kayak guides were funny, informative and very helpful. We had a great time,...More

Thank yieldmap
Reviewed 26 June 2018
Fun in the sun!

Troy and his group were knowledgeable guides! We learned a lot about the area. It was a fun adventure! Great exercise kayaking! The hike is really a walk, but still beautiful. The group was rather large and caused a few issues when kayaking and made...More

Thank 476sherriw
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