One of the most recommended tours to do on Ambergris Caye is a boat trip to Hol Chan Marine Reserve. We really do have world class scuba diving and snorkeling here in Belize and even enjoyed some recent international and local press: Hol Chan Marine Reserve Belize Among Top Ten Snorkeling Spots In The World by the National. Belize named second best snorkeling spot in the world by San Pedro Sun.
What people forget to mention is a visit to Hol Chan Marine Museum. I recommended it in my tacogirl Top Ten 10 random things to do in San Pedro write up and I always tell people to stop and support Hol Chan by taking a trip to the marine museum in downtown San Pedro. In addition to what you see in the pictures below they have nice glass cases on the wall with all the different shells found in Belize.
To see pics of what a catamaran snorkeling trip is like a few sea creatures you will find under water check out Party at Hol Chan post and a speed boat tour of Shark Ray Alley with Belize Diving Adventures.