SAN FRANCISCO (CBSLA.com) — A kayaker captured incredible video of whales breaching the waters with the San Francisco skyline as a backdrop.

Marine mammal experts say the humpbacks are on a feeding frenzy.

READ MORE: Colin Powell, First Black Secretary Of State, Dies At 84 Of Complications From COVID-19

They’re loading up on herring and anchovies as they make their way north.

READ MORE: Food Truck Crashes In Vernon; One Dead

A group of kayakers stumbled on this huge surprise on Sunday.

MORE NEWS: `Solidarity' Cited In New Deal For 40k Behind-the-Scenes Film & TV Workers

The feeding lasted about half an hour.