Nurse sharks (Ginglymostoma cirratum), being fed in Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

nurse sharks feeding belize ginglymostoma cirratum marine life underwater biodiversity reef ecosystem aquatic ocean tropical fish conservation snorkeling diving wildlife caribbean waters sea habitat nature oceanic species observation ecotourism scuba coral behavior trips reserve interaction ecology habitats community shark sanctuary hol chan adventure encounter exploration