Jurgen Freund / Split level of snorkeler underwater in freshwater pond. Florida USA

Jordi Chias / Woman snorkeller swimming inside lagoon Toau atoll, Tuamotu Archipelago, French Polynesia, Pacific Ocean.

Christophe Courteau / African elephants (Loxodonta africana) swimming across Chobe River, trunks raised above surface for breathing, Chobe National Park, border between Botswana and Namibia.

David Pattyn / Children snorkelling in the sea and swimming with bottlenose dolphins (Tursiops truncatus) with boat approaching. Indian Ocean, Zanzibar, Tanzania, August 2014.

Brandon Cole / Whale shark (Rhincodon typus), view from underneath as four people swim alongside, Gulf of Mexico, Mexico, Caribbean Sea.

Angelo Gandolfi / Snorkeller with shoal of Piraputanga (Brycon hilarii), Rio Olha d'Agua at Cabeceira do Prata, Bonito, Mato Grosso do Sul, Brazil

Franco Banfi / Two women snorkeling in front of the cave, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean. Model released.

Alex Mustard / A fisherman swims down to touch the statue of Christ Of The Abyss (Cristo degli abissi) for good fortune, in the Marine Protected Area of Portofino (Area Marina Protetta, Portofino), Liguria, Italy. M...

Franco Banfi / Free diver with Blue shark (Prionace glauca) Pico Island, Azores, Portugal, Atlantic Ocean, July. No release available.

Jurgen Freund / Coral reef split level with mangroves with snorkeller, Raja Ampat, West Papua, Indonesia, February 2012 Model released.

Michele Westmorland / Snorkeler swimming with harmless Jellyfish (Mastigias papua etpisonii), Jellyfish Lake, Rock Islands, Palau, Micronesia.

Brandon Cole / Woman (model released) snorkeling along edge of healthy coral reef with great diversity of hard and soft coral species. Indonesia, tropical Indo-Pacific Ocean February 2010

Todd Mintz / Scad fish / Horse mackerel (Trachurus trachurus) shoal with young male snorkeller, Bonaire, Dutch Caribbean. Model released.

Jeff Rotman / Child snorkeling and exploring on coral reef wall. Red Sea, Egypt. Model released Model released.

Brandon Cole / Sperm Whale (Physeter macrocephalus) and female snorkeler. Dominica, Caribbean Sea. Photo taken under permit. Model released.

Brandon Cole / Atlantic Spotted Dolphin (Stenella frontalis) interacting with a person snorkeling. Bahamas, Atlantic Ocean, July.

Doug Perrine / Researcher Guy Stevens photographs belly spot identification pattern of Reef manta ray (Manta alfredi formerly Manta birostris) feeding on plankton, Hanifaru Bay, Baa Atoll, Maldives, Indian Ocean, Oc...

Jurgen Freund / Flat calm seas of Tubbataha Reef, with a snorkeler swimming at the surface. Tubbataha National Marine Park, Philippines, April 2009.

Jurgen Freund / Split level of snorkeler over coral reef on white sandy seabed contrasting with dry topside landscape in background, Komodo NP, Indonesia, August 2009. Model released.

Jurgen Freund / Mahonia Na Dari (Guardian of the Sea) Teacher Lorna Romaso leads a group of 16 students to snorkel and learn about the reef. West New Britain, Papua New Guinea, May 2010.

Jurgen Freund / Mahonia Na Dari (Guardian of the Sea) Teacher Lorna Romaso leads a group of 16 students to snorkel and learn about the reef. West New Britain, Papua New Guinea, May 2010

Jurgen Freund / Mahonia Na Dari (Guardian of the Sea) teacher Lorna Romaso leads a group of 16 students to snorkel and learn about the reef. West New Britain, Papua New Guinea, May 2010.

Jurgen Freund / Snorkeler swims amongst Sergeant major damselfish (Abudefduf vaigiensis) at the house reef of Miniloc Island Resort, El Nido Island, Palawan, Philippines, May 2009. These fish gather in a dense mass w...

Jurgen Freund / Snorkeler swimming through a school of Oxeye scads (Selar boops) in the house reef of Miniloc Island Resort, El Nido island, Palawan, Philippines, May 2009. Model released.

Jurgen Freund / Snorkeler swimming underwater, split level, with Miniloc Island Resort in the background, El Nido, Palawan, Philippines, May 2009. Model released

Jurgen Freund / Split-level shot of coral reef and island with snorkeller swimming underwater. Misool, Raja Ampat, West Papua, Indonesia, January 2010. Model released.

Jeff Rotman / Klunzinger's wrasse (Thalassoma rueppellii / klunzingeri) swimming past diver, Sinai Peninsula, Red Sea, Egypt. Model released. Model released.

Jeff Rotman / Free diver swimming in shallow water over coral reef, Sinai, Egypt, Red Sea Model released Model released.

Jeff Rotman / Free diver exploring blue water beside coral reef, Sinai, Egypt, Red Sea Model released Model released.

Jeff Rotman / Dolphin trainer swimming with Bottlenosed dolphins (Tursiops truncatus) Dolphin Reef, Eilat, Israel, Red Sea. Model released Model released.

Tim Laman / Young boy aged 7 years (model released) snorkeling in a river, tropical rainforest, Borneo, Malaysia, July 2007

Onne van der Wal / Young man snorkeling with a Green turtle (Chelonia mydas) in the Grenadines, Caribbean, February 2010. Model Released.

Onne van der Wal / Young man snorkeling over seagrass bed, holding a starfish, The Grenadines, Caribbean. February 2010, Model released.

Onne van der Wal / Young man snorkelling in the Exumas, Bahamas, Caribbean. June 2009, Model released.

Onne van der Wal / Boys exploring plane wreckage in Exumas, Bahamas, Caribbean. June 2009, model released.

Jeff Rotman / Snorkelers interacting with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt, Red Sea. Model released Model released.

Jerry Monkman / Researchers searching for freshwater mussels in the Ashuelot River, Keene, New Hampshire, USA, September 2006.

Jeff Rotman / Snorkeler holding Sea Cucumber (Holothuria edulis) swimming with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt - Red Sea. Model released Model released.

Jeff Rotman / Snorkeler swimming with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt - Red Sea. Model released Model released.

Jeff Rotman / Snorkeler interacting with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt - Red Sea. Model released Model released.

Jeff Rotman / Snorkeler interacting with wild Bottlenose Dolphin (Tursiops truncatus), Nuweiba, Egypt - Red Sea. Model released Model released.

Jurgen Freund / Charlotte Watson snorkels down to collect sand which may contain polychaete worms, Coral Reef census, Lizard Island, Queensland, Australia, April 2008. Model released

Jurgen Freund / Woman Snorkler with tropical island in background, split level, Indo-Pacific

Jurgen Freund / Quicksilver Pontoon with tourists snorkeling watching fish split-level, Great Barrier Reef, Queensland, Australia 2006

Brandon Cole / Boca Slagbaai, Bonaire, with woman snorkeling in shallows, Caribbean Sea. NOT FOR SALE IN THE USA

Staffan Widstrand / Child, Olle Collinder, watching marine life through snorkel, Bohuslan, Sweden. Model released.

Doug Perrine / Man snorkeling with Atlantic spotted dolphins {Stenella frontalis} Bahamas (Non-ex).

Brandon Cole / Whale shark just under surface with snorkelers {Rhincodon typus} Ningaloo Reef, Western Australia NOT FOR SALE IN USA