On the latest episode of Rising Tide, bodysurfer David Helvarg and board surfer Natasha Benjamin sit down with photographer, filmmaker, and journalist Sachi Cunningham — a woman who has spent more than two decades pointing her lens at the pioneers rewriting what's possible in big wave surfing.

Cunningham helped build the LA Times video team from the ground up, producing the award-winning Chasing the Swell series and documenting the historic first women's heats at Mavericks, the legendary big wave break that rises from the deep-water canyon just south of San Francisco. Now living within earshot of Ocean Beach, she's putting the finishing touches on her first major documentary, Big Wave Women — a film tracking the hard-won fight for pay equity among the elite athletes drawn, or perhaps driven, to ride some of the most dangerous walls of water on the planet.

The conversation ranges wide: the cameras she trusts in the impact zone, the technical and physical demands of shooting from inside the surf, and a recent piece she wrote examining the geology and marine ecosystems that make Mavericks not just a spectacle, but a living seascape. It's a session that goes well below the surface.