"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...



Jonah Bryson, age 14, takes on his first feature to create "A Sweet Spot in Time", a documentary about the oceans, the environment and climate change, maybe the biggest issues facing the world today. OAA are proud to contribute with footage from David Hannan, Rob Stewart, Tristan Bayer & others ... Visit the website: www.sweetspotintime.com