Whale on a SUP

Okay, so the whale is not on an SUP, but a guy off of Malibu was on an SUP when he was overtaken by a couple of whales. I'm thinking humpbacks, but what do I know from whales? And of course, he had a GoPro with him. Check out the video below:

Whales go where they want, of course. But how close is too close?
Fisheries and Environment Canada recommend that vessels (and that includes kayaks) should stay a minimum 100 metres away from whales. Don't approach from in front or behind, only from the sides.
What you should do if you see a whale? You can get more info from Be Whale Wise.