They also like to do night dives at Hol Chan. Very shallow and the non divers could accompany with snorkels. The blue hole is deep unless you stay shallow and there is a ton of stuff in the shallow area around the walls. Just tell the DM that you are not going down to the formations and sttay in the top 40 feet. Very cool! Most dives off ambergis caye could be done by staying on top of the spur and groove formations. Just hang around under the boat and wave bye to the divemaster on the deeper dives.