We've seen close calls but...

These kayakers were lucky to come away with their lives after this incident with a humpback whale in Moss Landing, California.

On their YouTube account Sanctuary Cruises provided details of their whale tour, which took place just outside the harbor in Moss Landing, where two kayakers on a tandam kayak were almost crushed to death by a massive, near full-size humpback whale.

"We stopped to see a large aggregation of humpbacks feeding and carrying on with random acts of hijinks. There were also a lot of kayakers right in the middle of it all. Humpbacks were coming up next to and in the middle of many kayakers. It was amusing.

"It's all fun and games until someone gets jumped on. The next thing we knew, this thing launched right on top of these two kayakers."

Certainly.