Glass-Bottom Boat Tour to Stingray City. Board a glass-bottom boat for a 1.5-hour tour to Stringray City, and encounter the Grand Cayman Islands’ marine life first-hand. Watch schools of reef fish slip by the boat’s clear viewing window, then slip into the warm, shallow water to play with the island’s friendly population of stingrays. Stand on the sandy seafloor as you pet their smooth, scaly backs and lean in for a good-luck kiss, then don a snorkel to swim alongside them as they flit across the shallow sandbars and bright coral reefs. Book and Save 10%: Glass-Bottom Boat Tour to Stingray City.