The camera rewind feature on Surfline’s Ocean Beach camera in San Francisco revealed a frightening scene from Thursday morning: a shark, believed to be a great white, breaching.

The shark jumped just outside the lineup at about 8:45 a.m.

Sharks breach out of the water generally during hunting to stun their prey.

Whether the surfers cleared the lineup afterwards is unclear, but we certainly would have.

More from GrindTV

Patagonia launches political campaign to rally votes for the environment in 2016 elections

Here are 5 amazingly effective foods for adventure athletes

Legendary surfer Gerry Lopez talks Oregon, river surfing and Duke