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Iriomote Island Diving - Beautiful branch coral herd
Clear, blue water
Caribbean coral reef
Baby reef in shallow water on Red Sea / Lahami Bay. The Red Sea is a rich and diverse ecosystem. More than 1200 species of fish have been recorded in the Red Sea, and around 10% of these are found nowhere else. This also includes 42 species of deepwater fish. The rich diversity is in part due to the 2,000 km (1,240 mi) of coral reef extending along its coastline; these fringing reefs are 5000–7000 years old and are largely formed of stony acropora and porites corals. The reefs form platforms and sometimes lagoons along the coast and occasional other features such as cylinders (such as the Blue Hole (Red Sea) at Dahab). These coastal reefs are also visited by pelagic species of Red Sea fish, including some of the 44 species of shark.
A scenic view of fluffy white clouds over sandy Tumon Beach, Guam, USA
This stunning Staghorn coral ((Acropora cervicornis) is showing early signs of coral bleaching as the tips are turning white.  This is a critically endangered species of coral highly sensitive to pollution, climate change, ocean acidification and disease as its threats.  Coral reefs are some of the most diverse ecosystems in the world with 70% globally suffering coral bleaching.  The location is Phi Phi Islands, Andaman Sea, Krabi, Thailand.
Ishigaki Island Ibarama Bay seabed/Bluestripe Snapper
Large group of tropical fish on colorful corals underwater.
Underwater photography of coral and marine life
defaultbeautiful islands at kerama shoto national park in okinawa, japan.
Damselfish hover above a coral on a sandy seafloor in Komodo National Park, Indonesia. This tropical region is part of the Coral Triangle and known for its high marine biodiversity. It is also a popular destination for scuba divers and snorkelers.
Mansuar island, Raja Ampat, West Papoua, Indonesia
Aerial view Great Barrier Reef from sky out of air plane in Australia
Over and underwater shot of tropical island
Free flowing in the sea
Near threatened species stony Acropora coral of the Staghorn variety at the bottom of the Andaman sea, Thailand. Location Ko Haa marine reserve.
school of purple fish in Jamaica
Tropical fish swimming around each other in Negril, Jamaica
Tropical fish swimming on a coral reef
Coral covered sea floor in bright blue pacific ocean with little tropical fish
Underwater photo from a scuba dive in the Andaman Sea
Beautiful Coral reef with with lot of tropical Fish / Marsa Alam - Egypt. Scuba Diving on 15m deep.
View of  coral in lagoon of New Caledonia
Caribbean sea underwater coral reef with tropical fish in Cuba
School of exotic coral fish -  Picasso or trigger-fish, scientific name is Rhinecanthus assasi, the species belongs to the family Balistidae, it inhabits Red Sea, Middle East
Red fishes on a reef in the red sea, off the coast of Yanbu, Saudi Arabia
A Skunk Anemonefish Clown fish (Amphiprion ephippium) is in a Magnificent Sea Anemone (Heteractis magnifica). The Anemone has stinging venom coated polyps, which the Anemone fish has the ability to cover its body with and use as protection from predators.  In return, the Anemone fish constantly eats parasites from the Anemone, keeping it clean.  A perfect demonstration of a symbiotic relationship in nature.  The location is Phi Phi islands, Andaman Sea, Krabi Province, Thailand.
Lochsen damselfish swimming in the sea of Miyakojima
Underwater scenery, environmental conservation
Bunte Unterwasserwelt
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