View of glass bottom boat leaving Hout Bay Harbour, Hout Bay, Cape Town, Western Cape, South Africa, Africa

Tourists boarding a glass bottom boat at Pigeon Point, Tobago, West Indies, Caribbean, Central America

Bluefin Trevally feeding under the glass bottom boat of Captain Tama's Lagoon Cruises, Muri Lagoon, Rarotonga, Cook Islands, South Pacific, Pacific

Glass bottom boats near Hikkaduwa taking tourists to the Coral Sanctuary, Sri Lanka, Asia

Glass bottom boat, Beau Vallon BayMahe, Seychelles, Indian Ocean

Glass bottom boat, Beau Vallon BayMahe, Seychelles, Indian Ocean

Woman climbing into a boat during a trip in a glass bottom boat with Spyros Plakides, Akamas coast, from Latsi harbour, near Polis, Cyprus

Jamaica Negril beach glass bottom boat

Glass bottom boat, Port Ghalib, Marsa Alam, Red Sea, Egypt, Africa

Glass bottom boat, Unawatuna, Sri Lanka, Ceylon, South Asia, Asia

Side view of a glass bottom boat, Hamilton, Bermuda

WEST INDIES Tobago Buccoo Reef The Nylon Pool with tourists swimming or standing in shallow water by crowded glass bottom boat