Anyone know where this is? Looks pretty sweet.
Kelp and weak sedimentary cliffs: my guess would be somewhere on the California coast between La Jolla and SF. https://www.californiacoastline.org/cgi-bin/image.cgi?image=200804667&mode=sequential&flags=0&year=2008
I agree, but think it is more likely southern California (so no further north than Point Conception, which is just west of Santa Barbara). Possibly filmed on one of the Channel Islands.
Slight possibility it was filmed in Mexico along Baja, but I suspect for ease of filming they stuck to the US.