In the video, you can see the whirling column of air and water mist as the hiker says, "dope, it's an ocean tornado!"
According to the National Weather Service, waterspouts fall into two categories, fair weather waterspouts and tornadic waterspouts.
VIDEO: Aerial views of Salinas River flooding in Monterey County as levee breaks from overflowing water
Levee breaks from overflowing water along flooded Salinas River
The NWS says tornadic waterspouts are tornadoes that form over water or move from land to water. They have the same characteristics as a land tornado and are associated with severe thunderstorms like the ones we've seen with the recent atmospheric rivers that have hit Northern California.
As for fair weather waterspouts, the NWS says they usually form along a line of developing cumulus clouds. It says these types of waterspouts are generally not associated with thunderstorms.