1387-431 - A colorful West Indian starfish, Oreaster reticulatus, crawls over a shallow, sandy seafloor in Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

1387-429 - A beautiful coral reef, dominated by colorful gorgonians, grows along the edge of Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

1387-430 - A colorful West Indian starfish, Oreaster reticulatus, crawls over a shallow, sandy seafloor in Turneffe Atoll in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

1387-428 - Fast-growing staghorn coral fragments, Acropora sp., are being grown in hopes of replanting colonies in reef areas of the Caribbean Sea that have been damaged.

1387-427 - A colorful queen conch, Strombus gigas, lies on the seagrass-covered seafloor of Turneffe Atoll in Belize. Conchs are an important marine resource as they are sought for food.

1387-426 - A beautiful coral reef, dominated by colorful gorgonians, grows along the edge of the Blue Hole in Lighthouse Reef in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

1387-425 - A beautiful coral reef, dominated by colorful gorgonians, grows along the edge of the Blue Hole in Lighthouse Reef in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth.

1387-424 - A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.

1387-423 - A large roughtail stingray, Dasyatis centroura, lays on the seagrass-covered seafloor of Turneffe Atoll off the coast of Belize. This reef is part of the massive Mesoamerican Reef System in the Caribbean Sea, the second largest barrier reef on Earth.

1387-422 - A well-camouflaged yellow stingray, Urobatis jamaicensis, swims over a shallow seagrass meadow growing within Turneffe Atoll's lagoon in the Caribbean Sea. This reef is part of the massive Mesoamerican Reef System, the second largest barrier reef on Earth

1184-12180 - Aerial of Goa island near the Island of Mozambique, Mozambique, Africa

759-12508 - View from Sanganeb Lighthouse, Red Sea, Sudan

759-12507 - View from Sanganeb Lighthouse, Red Sea, Sudan

759-12503 - View from Sanganeb Lighthouse, Red Sea, Sudan

759-12502 - Lighthouse of Sanganeb Reef, Red Sea, Sudan

759-12501 - Lighthouse of Sanganeb Reef, Red Sea, Sudan

759-12500 - Lighthouse of Sanganeb Reef, Red Sea, Sudan

759-12499 - Lighthouse of Sanganeb Reef, Red Sea, Sudan

1184-7657 - Aerial of Vlamingh Head Lighthouse, Ningaloo Reef, UNESCO World Heritage Site, Exmouth, Western Australia, Australia, Pacific

1112-6731 - Surfer at North Reef, Lighthouse Bay, Exmouth, Western Australia, Australia, Pacific

1112-6732 - Surfer at North Reef, Lighthouse Bay, Exmouth, Western Australia, Australia, Pacific

1112-6733 - Large waves breaking at North Reef, Lighthouse Bay, Exmouth, Western Australia, Australia, Pacific

832-389629 - Rocky reef at the North Sea against the light, Neist Point peninsula with lighthouse, Dunvegan, Isle of Sky, Inner Hebrides, Scotland, Great Britain

1116-48272 - Scuba divers in the Great Blue Hole dive site on the Belize Barrier Reef. This site was made famous by Jacques Cousteau, who declared it one of the top five scuba diving sites in the world, Belize

1116-48273 - Scuba divers in the Great Blue Hole dive site on the Belize Barrier Reef. This site was made famous by Jacques Cousteau, who declared it one of the top five scuba diving sites in the world, Belize

1179-4198 - Aerial view by drone of historical island of Ile au Phare (Ile Aux Fouquets) in between coral reef and Indian Ocean, Mahebourg, Mauritius, Indian Ocean, Africa

1116-39685 - Cliffs along the coastline of the island of Lanai with bright blue ocean water, Lanai, Hawaii, United States of America

1104-725 - Elbow Reef Lighthouse, the last kerosene burning manned lighthouse in the world, Hope Town, Elbow Cay, Abaco Islands, Bahamas, West Indies, Central America

1104-724 - Elbow Reef Lighthouse, the last kerosene burning manned lighthouse in the world, Hope Town, Elbow Cay, Abaco Islands, Bahamas, West Indies, Central America

1104-723 - Elbow Reef Lighthouse, the last kerosene burning manned lighthouse in the world, Hope Town, Elbow Cay, Abaco Islands, Bahamas, West Indies, Central America

1104-722 - Elbow Reef Lighthouse, the last kerosene burning manned lighthouse in the world, Hope Town, Elbow Cay, Abaco Islands, Bahamas, West Indies, Central America

746-87774 - The cliffs and lighthouse overlooks the blue Atlantic ocean at Cabo De San Vicente, Sagres, Algarve, Portugal, Europe

832-262866 - Spotted Eagle Rays (Aetobatus narinari) with Live Sharksuckers (Echeneis naucrates) swimming above a coral reef with sandbanks and White Mullet (Mugil curema) near the surface, Half Moon Caye, Lighthouse Reef, Turneffe Atoll, Belize, Central America, Cari

832-262872 - Scuba diving group swimming from the diving boat above a sandy seabed to a coral reef, Half Moon Caye, Lighthouse Reef, Turneffe Atoll, Belize, Central America, Caribbean

832-262867 - Spotted Eagle Ray (Aetobatus narinari) from above with dotted markings, Live Sharksuckers (Echeneis naucrates) above a coral reef with sandbanks, Half Moon Caye, Lighthouse Reef, Turneffe Atoll, Belize, Central America, Caribbean

1113-80985 - Lighthouse on Hamilton Island, Whitsunday Islands, Great Barrier Reef, Australia

812-187 - Sea plane and yacht, Hamilton Island, Great Barrier Reef, Queensland, Australia, Pacific

759-4159 - Sanganeb lighthouse, Sanganeb Reef, Sudan, Red Sea, Africa

450-1659 - Blue Hole, Lighthouse Reef, Belize, Central America

450-1656 - Blue Hole, Lighthouse Reef, Belize, Central America

450-1660 - Lighthouse Reef, Belize, Central America