Lots of Hammerheads, which are very passive, and lots of nurse sharks which are about as dangerous as a turtle. Ive seen a few reef sharks, but never had any real close encounter with any. Never seen a tiger shark in person, which I kinda wanna do but kinda dont . Those things are massive and aggressive. Coolest thing I saw was a saw fish. They are pretty rare. One of the creepier things I saw was a loggerhead turtle missing a front fin and a hind fin and we were near a blue hole. Eerie reminder that you aint the boss down there.