"Since I started diving in the 1960s up to 50% of the world’s coral reefs have been lost. The remaining reefs are either severely threatened or dying and we may lose them all before 2050 – unless we act now"

David Hannan
Diver & Cinematographer
Ocean Ark Alliance

All life depends on our oceans.

Ocean Acidification is destined to be one of the biggest issues humanity has ever faced.

-- Dr J.E.N. ('Charlie') Veron
World Renowned Reef Scientist

OAA Projects & Initiatives

Ocean Ark Alliance

Ocean Ark Alliance (OAA) is a Not For Profit organisation based in Australia dedicated to promoting and sponsoring marine education and the conservation of oceanic environments. More about us...

OAA’s mission is to create a deeper appreciation of some of the most wondrous, yet fragile, ecosystems on our planet. Our current focus is coral reefs, coastal communities & polar biomes. Our Projects...



Mission Blue is a stunning new film that documents the extraordinary life of Dr. Sylvia Earle, a world renowned scientist and undersea explorer who has studied the oceans for over half a century. It's an intriguing look at Sylvia's epic career, her challenges in a male-dominated scientific field, and her lifelong fight to protect the marine world from a host of environmental threats including overfishing, climate change and more. Visit the website: mission-blue.org/mission-blue-film/