Alexandra Cousteau


Explorer, Storyteller, ocean advocate, mother


From a very early age, Alexandra has known and loved the ocean.

Her memories of exploring the ocean as a child are of much greater abundance of marine life and a fraction of the plastic littering beaches and the sea floor. Though she is disheartened by the degradation of the marine environment, Alexandra is actively working to increase the abundance of our oceans with a two sided approach: MORE fish and LESS plastic. While we will probably never be able to restore the oceans that her grandfather Jacques Yves Cousteau first started exploring in the 1950s, we can aspire to leave our children an ocean abundant with LIFE and reverse the flow of plastic away from the ocean. Her work primarily consists of advising non-profits, government, and industry as well as collaborating with communities, the media and forward thinking brands. 






Expeditions to explore and protect





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Alexandra has been going on expedition since she was an infant.

She traveled with her parents on location when they were filming for "Undersea World of Jacques Cousteau" from 1976 to 1979, and then intermittently joined her grandparents on the Calypso until the early 1990s. For Alexandra, being with her crew on expedition is where she feels most alive and most at home.

Building on the Cousteau legacy of exploration and “experiential storytelling,” Alexandra has led or participated in expeditions across 6 continents over the past 20 years to tell some of the most critical water stories of our time. 


Featured Expeditions





campaigns to restore ocean abundance






Alexandra's advocacy for oceans started at the age of 8 when she gathered signatures for her grandfather's petition to save Antarctica.

Since then, she has always been involved in ocean conservation in some way, whether advocating for the expansion of marine protected areas, educating consumers about sustainable seafood, or investigating the impacts of oil spills and agricultural runoff on sensitive coastal zones. Over the past few years, she's realized that conservation, the idea that we must protect what we have, is insufficient. Too much has been lost. The oceans are depleted beyond what her grandfather could have imagined when he started his own expeditions in the 1950s and the amount of plastic choking the seas in unimaginable to most people. If we want to leave a legacy for our children, we must do more than conserve. We must be strategic and relentless in our quest to rebuild ocean abundance.  

Alexandra focuses her efforts on two issues: overfishing (taking too many fish out of the sea) and plastic pollution (pushing too much plastic into the sea). She hopes that if we tackle these two issues successfully, we may reverse the trend that predicts more plastic in the ocean than fish by 2050.


About the fish...

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Alexandra has been deeply involved in Oceana's campaigns to curb overfishing in the countries that control about one third of the world’s wild fish catch in order to win policy victories that can increase biodiversity in our oceans and deliver more seafood to the future.   

The global fish catch peaked in the late 1980's and has been declining ever since. Alexandra works with Oceana to reduce overfishing by advocating for science-based catch limits, reducing harmful fishing subsidies and stopping illegal, unreported and unregulated (IUU) fishing. She joined forces with Oceana as a Senior Adviser in 2011 to help mobilize awareness and support for the organization's important work. She has joined Oceana expeditions, events and campaigns to help propel their important work to ever larger audiences and deeply believes in the mission and track record of the organization. 


Join the adventure!