Operating from ship and shore, ODA's all-volunteer boat and dive crews remove abandoned fishing nets, traps, lines, plastic, and other man-made debris threatening ocean wildlife and habitats.

Ocean Defenders Alliance (ODA) exists to give people like you a way to clean our oceans!

ODA is funded by donations big & small from individuals and companies who are concerned about the problem of marine debris and want to be part of the solution.

The active work of cleaning our coastal waters and shorelines is done by a myriad of folks of all ages from all walks of life. Young and old, people who are technical divers and those who can't even swim, all come together with a common purpose: To work towards debris-free seas!

If you're just learning of us, you'll be glad to know we've been around a long time. Founded in 2000 by people just like you, and based in Orange County, California, ODA is a marine conservation organization and became a registered 501(c)(3) nonprofit in 2002.