This big. Around 1,300 lbs to be inexact. Plus "its heartbeat can be detected from two miles away and a human can fit in its arteries." Not only that, I heard their sperm are the size of jet-skis. Just kidding, I'd still ride on one though.
Thanks to Melissa, who really loves whales. Like, to the point where she has stickers of them all over her Trapper Keeper. Nice, psycho.