Matthew David Kaplan is an ocean filmmaker, dive expedition leader, and activist dedicated to protecting and restoring the ocean through storytelling, education, and action.

His work captures both the beauty of the ocean and the forces driving its collapse, with a particular focus on coral reef decline, overfishing, sewage pollution, and weak enforcement of “protected areas.” Through film, education, and advocacy, he aims to expose what is being lost and help drive meaningful action.

As a Divemaster and expedition leader, Matthew leads dive experiences around the world that help people connect more deeply to the ocean and each other, while supporting conservation efforts alongside local partners.

In 2026, he launched a long-term project in Indonesia focused on helping build Actual Protected Areas: marine areas that are truly protected and enforced, not just protected on paper. He will document the progress, resistance, and lessons along the way.

Matthew is a member of the Sea Shepherd crew, a monthly contributor for Discovery, a SurfEars Ambassador, an Only One Ambassador, and a member of the Scubapro Global Dive Team. He has also spoken at international forums, including COP29 in Baku, Azerbaijan.