Water villas stand in a shallow lagoon close to the shore of a tropical paradise island in the Maldives, Havodda Island, Gaafu Dhaalu atoll, Maldives

Snorkeling at Eriyadu Island House Reef, North Male Atoll, Maldives

Mia Reef Hotel, Isla Mujeres, Caribbean Coast, Cancun, Quintana Roo, Mexico, North America

Lagoon at Mia Reef Hotel, Isla Mujeres, Caribbean Coast, Cancun, Quintana Roo, Mexico, North America

Scuba Diver inside Cave, Pseudanthias squamipinnis, Paradise Reef, Red Sea, Egypt

Scuba Diver and Shoal of Bluefin Trevally, Caranx melampygus, Paradise Reef, Red Sea, Egypt

Scuba Diver inside Cave, Paradise Reef, Red Sea, Egypt

Scuba Diver inside Cave, Pseudanthias squamipinnis, Paradise Reef, Red Sea, Egypt

Coral Formation, Paradise Reef, Red Sea, Egypt

Scuba Diver inside Cave, Paradise Reef, Red Sea, Egypt

Scuba Diver inside Cave, Paradise Reef, Red Sea, Egypt

Scuba Diver and Bluespotted Ribbontail Ray, Taeniura lymma, Paradise Reef, Red Sea, Egypt

Scuba Diver and Coral, Paradise Reef, Red Sea, Egypt

Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Bangka (boat) over coral, Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Sand Island off Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Sand Island off Chindonan Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Blacktip reef sharks patrol the shallow waters around a small island in Tahiti, French Polynesia.

A myriad of hard and soft corals, as well as tropical reef fish on the healthy reef near Volivoli Resort on Viti Levu, Fiji, South Pacific, Pacific

A drone view of a sandy tropical beach, with a lagoon fringed by a coral reef; Havodda Island, Gaafu Dhaalu atoll, Maldives

Aerial of a traditional Dhow on a white sand beach, Goa island near the Island of Mozambique, Mozambique, Africa

Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Kyphosus sectatrix seen during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Underwater photo taken during the Palancar Gardens, El Cielito and Colombia Deep Reef Snorkelling Tour, Cozumel Island, Quintana Roo State, Mexico

Snorkeling woman holding starfish underwater, The Maldives, Indian Ocean

Coral reef and sea life banner, The Maldives, Indian Ocean

Woman snorkeling in clear tropical sea, The Maldives, Indian Ocean

Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize

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

Southern stingray (Hypanus americanus), with snorkeler in shark and ray alley, Caye Caulker, Mesoamerican Barrier Reef, Belize

A myriad of fish and coral underwater at Hol Chan Marine Preserve, inside the Mesoamerican Barrier Reef, Belize

Driftwood on white sand beach at beautiful Mahoro Island with Masare and Pahepa Islands beyond, Mahoro, Siau, Sangihe Archipelago, North Sulawesi, Indonesia, Southeast Asia, Asia

Corals and tropical fish, underwater sea life, The Maldives, Indian Ocean

Woman snorkeling in clear tropical sea, The Maldives, Indian Ocean

Blue ocean underwater background, Thailand

Underwater view of the reef along the circumference of the Great Blue Hole on Lighthouse Reef, UNESCO, Belize

Aerial of Goa island near the Island of Mozambique, Mozambique, Africa

Bulog Dos Island, Calamian Islands, Coron, Palawan, Philippines, Southeast Asia, Asia

Aerial of Goa island near the Island of Mozambique, Mozambique, Africa

People bathing in lagoon at Mia Reef Hotel, Isla Mujeres, Caribbean Coast, Cancun, Quintana Roo, Mexico, North America

Person sitting in wooden chair watching sunset, Belize Barrier Reef, Caribbean (rr)

coral key, Belize barrier reef

Olive ridley turtle hatchling, Lepidochelys olivacea, Costa do Sauipe, Bahia, Brazil (South Atlantic)

Green sea turtles hatching, Chelonia mydas, Fernando de Noronha, Pernambuco, Brazil.

Crab preying on dead portuguese man-of-war, Physalia physalis, Praia do Forte, Bahia, Brazil (South Atlantic)

Parrotfish sleeping, Sparisoma sp., head detail, Ponta da Sapata, Fernando de Noronha national marine sanctuary, Pernambuco, Brazil (S. Atlantic)

Tube anemone close-up, Cars, Dumaguete, Negros Island, Philippines.

Piranha (Pygocentrus nattereri), a carnivorous fish, caught on a line, southern Pantanal, Mato Grosso do Sul, Brazil

Olive ridley turtle hatchling, Lepidochelys olivacea, Costa do Sauipe, Bahia, Brazil (South Atlantic)

Caiman or jacare, Caiman crocodilus yacare, at night, southern Pantanal, Mato Grosso do Sul, Brazil

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Aerial view of Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. Red lagoon near Boca Paila Bridge. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Palms and old pier in Punta Allen Sian Ka'an Reserve, Yucatan Peninsula, Mexico. In the language of the Mayan peoples who once inhabited this region, Sian Ka'an means Origin of the Sky. Located on the east coast of the Yucatán peninsula, this biosphere reserve contains tropical forests, mangroves and marshes, as well as a large marine section intersected by a barrier reef. It provides a habitat for a remarkably rich flora and a fauna comprising more than 300 species of birds, as well as a large number of the region's characteristic terrestrial vertebrates, which cohabit in the diverse environment formed by its complex hydrological system. Along its roughly 120 kilometres of coastline, the property covers over 400,000 hectares of land ranging from sea level to only ten m.a.s.l. The property boasts diverse tropical forests, palm savannah, one of the most pristine wetlands in the region, lagoons, extensive mangrove stands, as well as sandy beaches and dunes. The 120,000 hectares of marine area protect a valuable part of the Mesoamerican Barrier Reef and seagrass beds in the shallow bays. The lush green of the forests and the many shades of blue of the lagoons and the Caribbean Sea under a wide sky offer fascinating visual impressions.

Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Rowing at sunset in Tahiti, French Polynesia, Tahiti Nui, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Moorea island french polynesia lagoon aerial view panorama. reef see, Moorea island (aerial view), Windward Islands, Society Islands, French Polynesia, Pacific Ocean. landscape

Albatros. Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Paul Gauguin docked in the Island of Taha'a, French Polynesia. Motu Mahana palm trees at the beach, Taha'a, Society Islands, French Polynesia, South Pacific.

Sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Typical houses, road, and reef see, Moorea island (aerial view), Windward Islands, Society Islands, French Polynesia, Pacific Ocean.

Island of Taha'a, French Polynesia. Local vendor at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Local vendor of pearls at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Tourist girl in public beach Opunohu Beach and Ta'ahiamanu beach in Moorea, Cook's Capitan Bay, French Polynesia, Society Islands, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Public beach Opunohu Beach and Ta'ahiamanu beach in Moorea, Cook's Capitan Bay, French Polynesia, Society Islands, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Rowing at sunset in Tahiti, French Polynesia, Tahiti Nui, Society Islands, French Polynesia, South Pacific.

Snorkeling excursion in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Island of Taha'a, French Polynesia. Motu Mahana palm trees at the beach, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Tourists on a snorkeling excursion to view black tipped sharks and sting rays in the shallow waters of the Bora Bora lagoon, Moorea, French Polynesia, Society Islands, South Pacific. Cook's Bay.

Island of Taha'a, French Polynesia. A local boy plays the ukulele to woo your girl at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Motu Mahana woman at the beach, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Polynesian music and dances at the Motu Mahana, Taha'a, Society Islands, French Polynesia, South Pacific.

Island of Taha'a, French Polynesia. Motu Mahana palm trees at the beach, Taha'a, Society Islands, French Polynesia, South Pacific.

Typical houses, road, and reef see, Moorea island (aerial view), Windward Islands, Society Islands, French Polynesia, Pacific Ocean.

Painted frogfish, Antennarius pictus, white phase, Sabang wreck, Puerto Galera, Mindoro, Philippines.

Electric eel, Electrophorus electricus; this air-breathing freshwater fish can deliver an electric shock up to 650 volts and naturally occurs in the Amazon river basins of South America including Brazil and Guyanas; photo taken in captivity.

Mantis shrimp, Odontodactylus scyllarus, Dauin, Dumaguete, Negros Island, Philippines.

Needle cuttlefish, Sepia aculeata, front view at night, Dumaguete, Negros Island, Philippines.

Nudibranch, Atlantis house reef, Dumaguete, Negros Island, Philippines.

Feather star on sea fan, and scalefin anthias, Pseudanthias squamipinnis, Kilima steps, Puerto Galera, Mindoro, Philippines.