6 – 18 October 2027 · 4 cabins availableSAVING
OCEAN GIANTS
The Marine Megafauna Foundation (MMF) is a globally recognized marine conservation non-profit. We’re focused on protecting the most endangered ocean giants, and the habitats they call home.
DonateJoin our team on an expedition
Small-group liveaboard trips hosted by MMF scientists that support marine conservation.
6 – 18 October 2027 · 4 cabins available
21 October – 2 November 2027 · 1 cabin availableAmbon to Raja Ampat
From Ambon’s famed macro, north to the world's richest reefs, seeking out hammerheads, manta rays, and walking sharks.
20 – 31 March 2028 · Open for bookingRaja Ampat
Eleven nights aboard Coralia Dua across Misool and the Dampier Strait — manta rays, walking sharks, and the world's richest coral reefs.Trusted by Ocean Lovers Worldwide

With a 2026 Candid Platinum Seal of Transparency and 20+ years of proven impact, your support helps save whale sharks, manta rays, and marine ecosystems.
Invest in our OceansExplore our programs
Long-term research and conservation, run by the scientists who live where the animals live.
Global · whale sharksGlobal Whale Shark ProgramThe world's largest whale shark research network, from Mozambique to the Galápagos — the science behind the species' Endangered listing and its recovery plan.Learn more →
Mozambique · educationOcean GuardiansA UNESCO-recognized program teaching Mozambican children to swim, snorkel, and protect the ocean on their doorstep.Learn more →
Mozambique · community conservationSustainable SeasWorking with fishing communities on locally managed marine areas, alternative livelihoods, and the protection of threatened sharks and rays.Learn more →
USA · manta raysFlorida Manta ProjectThe first study of a manta ray nursery, off one of the most developed coastlines in the world.Learn more →

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