Nite Snorkel Hol Chan Marine Park (Departs at 5:15 PM and Returns at 7:30 PM) Did you know that 80% of the marine life is nocturnal? Encounter sleeping parrotfish, shrimps, lobsters, basket stars, octopus, lemon or hammerhead sharks, sea horses and dozens of sting and manta rays. The underwater rental flashlights are available at our dive shop.