Her marine conservation activism has included campaigning against the overfishing and culling of sharks, dolphins and whales,[10][18] and against unsustainable fishing practices and ocean pollution,[19][20] often in conjunction with Greenpeace.

[24][25] Also in 2013, she starred in a conservation film, Betrayal, to campaign against the hunting of humpback whales with which she freedived in Tonga.

[26][27] That same year she night dived while breath-holding at 30 ft (9.1 m) depth with manta rays in Kona, Hawaii, to raise awareness of their non-protected status.

[10][28] To highlight her ecological message, Fraser and Shawn Heinrichs released Manta's Last Dance, a video of Fraser's freedive performance with manta rays, just two weeks prior to the Convention on International Trade in Endangered Species (CITES).

[12][18] Fraser also appeared on the Discovery Channel alongside Sharkanado's Tara Reid, where she was interviewed about her dive with tiger sharks and on 20/20 ABC News.