Wail song.

You don't have to speak Spanish to understand that the "Yay! Yay! Yay! Yay! Yay!" in this video roughly translates to, "Holy shit! A humpback whale has just lifted me and my kayak out of the water, and I will treasure this moment for the rest of my life! That is, if the whale doesn't decide to snap my tiny boat in half and toss me and my companion several hundred yards, and I'm somehow able to survive this incredibly exciting, terrifying ordeal!"

Sources: Sunny Skyz