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Founded in 1996 by marine ecologist Dr. Gregor Hodgson, the Reef Check Foundation is an international non-profit organization dedicated to conservation of two ecosystems: tropical coral reefs and California rocky reefs. With headquarters in Los Angeles and volunteer teams in more than 80 countries and territories, Reef Check works to create partnerships among community volunteers, government agencies, businesses, universities and other non-profits. Reef Check goals are to: educate the public about the value of reef ecosystems and the current crisis affecting marine life; to create a global network of volunteer teams trained in Reef Check's scientific methods who regularly monitor and report on reef health; to facilitate collaboration that produces ecologically sound and economically sustainable solutions; and to stimulate local community action to protect remaining pristine reefs and rehabilitate damaged reefs worldwide.


Reef Check’s mission is to educate the general public about the importance of coral reefs and threats to their health; provide scientific monitoring programs to measure coral reef health on a global basis; and empower communities with the tools necessary to effectively manage their local coral reefs.


Reef Check carries out its work through three major programs:

EcoAction Program – an education and certification program for kids to adults who want to learn more about the ocean and take part in protecting reef ecosystems.

Coral Reef Management Program – a coral reef monitoring and management system that focuses on establishing Marine Protected Areas to conserve coral reefs while encouraging sustainable use of surrounding reefs by local residents.

Reef Check California – a volunteer monitoring program for California rocky reefs designed to provide data for managers and to build a conservation constituency among California divers.


In 1997, Reef Check conducted the first-ever global survey of coral reef health that provided scientific confirmation that our coral reefs were in crisis due to over-fishing, illegal fishing, and pollution. The results, published in a scientific journal in 1999, shocked many marine biologists who had not realized the extent of human impacts on reefs. In August 2002, Reef Check released its first five-year report, The Global Coral Reef Crisis – Trends and Solutions, at the World Summit on Sustainable Development in Johannesburg, South Africa. Based on data collected by thousands of Reef Check volunteer divers in over 80 countries and territories, the report was the first scientific documentation of the dramatic worldwide decline in coral reef health over a five year period. The report concluded that there was virtually no reef in the world that remained untouched by human impacts, such as over fishing, pollution and climate change. Yet the success stories discussed in the report show that, with proper monitoring, management and protection, coral reefs can recover. It is up to us.

Since then, Reef Check's fast-growing network has expanded throughout all tropical seas, and has played a major role in efforts to preserve and sustain reef ecosystems. Reef Check’s approach is to engage partners, especially businesses in a non-confrontational manner to develop mutually beneficial solutions especially the creation of self-funding Marine Protected Areas. In 2005, Reef Check launched its first temperate reef program in California.

Reef Check has received international environmental awards for its work, and is the United Nations' official community-based reef monitoring program.


Aruba, Australia, Bahamas, Bangladesh, Belize, Brazil, Brunei Darussalam, China, Colombia, Costa Rica, Dominica, Dominican Republic, Egypt, Fiji, France, French Polynesia, Germany, Guadeloupe, Guatemala, Honduras, Hong Kong, India, Indonesia, Iran, Islamic Republic of, Jamaica, Japan, Jordan, Kenya, Madagascar, Malaysia, Maldives, Mexico, Micronesia, Federated States of, Montserrat, Netherlands, Netherlands Antilles, New Caledonia, Palau, Philippines, Reunion, Saint Lucia, Saint Vincent and the Grenadines, Seychelles, Solomon Islands, South Africa, Sri Lanka, Tanzania, United Republic of, Thailand, Turks and Caicos Islands, United Arab Emirates, United Kingdom, United States, Vanuatu, Virgin Islands, British, Virgin Islands, U.s.


California, Florida, Hawaii, Federated States of Micronesia, Palau, Virgin Islands of the U.S.


PACIFIC PLSDS, CA 90272-4148
Phone: (310) 230-2371
EIN: 95-4858649

A Gift Card


Train A Diver

One EcoAction training

This gift will provide training for one diver in our EcoAction program. This course will allow a diver to become a certified Reef Check diver, giving them the ability to join the Reef Check monitoring team and assist in underwater surveys around the world. These surveys provide valuable data to governments and other organizations on the health of our reefs.