I've seen this video passed around here lately.  On Halloween there were some folks swimming off of the coast of Santa Cruz California.  In the video you see two people on a kayak, and a girl swimming on a surfboard when two giant Humpback Whales come up out of the water with there mouths open... it is so awesome that some people think it's fake.

Barb Roettger shot the video from her Kayak, and swears to ABC News that it's real...

By the way, If the video is real, Barb could get into some real trouble.  The Coast Guard is warning people that if you get within 100 feet of a feeding pod of whales, you could be charged with "Whale harassment", and fined $2,500.