What is Double Fathom?

Double Fathom is snorkeling’s specialist — an AI-powered trip-planning service for people who’d rather be in the water. We plan snorkeling trips the way a local expert would: the right reef, the right month, the right conditions, day by day.

It started with a simple belief: snorkeling is for everyone. No expensive equipment, no boat, no license or certificate — just a mask, a reef, and an hour of peace. Our free Mission Briefings let anyone taste a great trip, and our Concierge tier plans the whole thing for travelers who want every day mapped.

We’re powered by AI and steered by humans. Every itinerary is built on hand-ranked reefs and real sea-condition data — and we put our name on ocean conservation, spotlighting the reef-restoration projects bringing coral back around the world.