Check out this crazy footage from the Discovery television show, North America which features footage of two sea kayakers who got the the thrill of their life when several Humpback whales broke the surface about 20 feet away to feed (not on the paddlers luckily). All this footage is shot somewhere in Alaska.
I can confidently say that I would freak out in this situation. How do I know you ask? I get scared startled seeing a floating stick on the water and think it's a giant snake going for my throat.
Click through for the video below: