Two teens diving from an Odyssey Expeditions catamaran into clear Caribbean water with snorkelers visible below the surface
Marine Biology · Sailing · Scuba · Since 1995

To the seas that
make us.

Three decades of Caribbean voyages where teens learn to sail a 50-foot catamaran, earn PADI certifications, and study coral reef ecology from the surface they're swimming above.


Thirty-One Years of Voyages

Since 1995, Odyssey Expeditions has taken thousands of teenagers across more than fifteen Caribbean nations — not on tours, but on voyages. Real ones, with watch schedules, navigation plotting, and dive briefings before breakfast.

Our students sail catamarans through the Windwards and the Grenadines. They earn PADI certifications by descending onto living coral reefs. They learn marine biology from working biologists, and contribute to long-running conservation projects in communities that know us by name. They return changed — not by a vacation, but by a summer that asked something real of them.

Odyssey divers descend toward swaying gorgonian corals on a Caribbean reef

Hands in the Water

Marine Biology, Not a Slideshow

Our voyages are taught by working marine biologists — not summer counselors with a guidebook. Students conduct reef surveys, identify cephalopod behavior, and contribute observations to peer-reviewed research. In 2019, an Odyssey voyage in St Vincent recorded the first documented cannibalistic attack in a wild Octopus vulgaris — published in the Journal of Molluscan Studies.

Three Odyssey teens on the catamaran bow with the boom sail behind them, sailing through clear Caribbean water

You Run the Boat

Crew, Not Passengers

On day one you learn the lines. By day three you're standing watch. By the time you sail into a different country, you're plotting the course. Our 50-foot catamarans are working sailing vessels, and our students run them — under the eye of licensed captains, but with real responsibility for navigation, anchor watches, and provisioning.

Underwater portrait among the sculptures of an underwater museum off the Caribbean coast

Communities, Not Resorts

Nine Caribbean Nations Know Us

Three decades of returning to the same harbors means the dive shops know our names, the bakers stay open late when our boats arrive, and the local conservation groups assign our students to ongoing projects. The Caribbean we show is the one we know — not the one printed in glossy brochures.


What You'll Do Aboard

Eight ways to spend a summer at sea.


From Our Crews

The crew became a family. By the end of three weeks I knew how to read a chart, identify a hundred reef species, and fall asleep under more stars than I'd ever seen.

Miles T. — Grenadines Adventure, 2024
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A freediver descending past an Odyssey catamaran toward a shipwreck below
Ready for an extraordinary summer?

The 2026 voyage
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