[3] Her own activism began at the age of 20 years when she joined her first environmental campaign with the Sea Shepherd Conservation Society to protect the Galapagos Marine Reserve.

[1] To continue her family's legacy, Hunter joined the Sea Shepherd campaign in the Antarctic Ocean to stop whaling by Japan,[3] serving as quartermaster and deckhand.

Hunter appeared in several documentary films, including At the Edge of the World by Dan Stone (2008), Eco-Pirate: The Story of Paul Watson by Trish Dolman (2011), and Revolution by Rob Stewart (2013), as well as, a TV-documentary called Green Heroes.

[citation needed] She has appeared on NPR, Voice of America, CBC News Network, A Current Affairs Australia and others.

Campaigns under scrutiny include The Black Fish action against illegal driftnet fishery in the Mediterranean and the "divestment" movement on North American university campuses.