10 feet down. I've been impressed with my GoPro Hero5 Session, but it did *amazing* in Hawai'i. I snorkled with it many times and got some pretty epic shots. Prepare to see them over the coming week(s). This was one of the first snaps I got on my first day out in the ocean. The purple coral was just exploding, I lucked out with the fish in the background, although there were tons, so maybe it wasn't so lucky..
View the larger version on Flickr.
View the larger version on Flickr.