Went surfing today with about 5 other guys. One of them was down a bit from us. At one point he paddled in, ran down to us and called us in, pointing to his surfboard fin and then pointing to the water out to the left. Once we got out we could see it was a shark. The back fin was about 4-5 feet from the front one, so I'm guessing it was 6-8 feet over all. I'm still not sure what kind it was but I'm trying to find out. We went and got a snack, then came back and went back out. He didn't seem interested in any of us so we just went about our day. It was still kinda sketchy though.