Image credits

Photography on this site is used under the Unsplash License (unless otherwise noted). With gratitude to every photographer below.

• Agnes LeeAn aerial view of the circular Great Blue Hole sinkhole ringed by turquoise shallows off Belize
• BRYNLLDA whale shark swims through clear blue open water
• CHUNGHOI KIMA scuba diver hovers above the sand and rock of the Silfra fissure in Iceland, the rift dropping away into deep blue glacial water
• Corentin LargeronA blacktip reef shark swims over a sandy seabed
• Darcy WheelerA whale shark swimming near the surface in open blue water
• David ClodeA grey reef shark cruising underwater
• David ClodeColourful reef fish swimming over hard corals in clear water
• Ed RushA yellow and purple nudibranch rests on black sand
• Erick Morales OyolaA colourful nudibranch sea slug on the seabed
• Everest LouisA manta ray swimming through open water
• geoff troddA dense school of silver fish swimming together underwater
• Heidi BruceA vibrant coral reef in blue water with a scuba diver in the background
• Ivan TorresA long-tailed thresher shark swimming in dark ocean water
• Jakob OwensA school of sharks swimming together in open blue water
• Jakob OwensA group of grey reef sharks schooling together underwater
• Jakob OwensA manta ray glides through bright, clear tropical water
• Jeremy BishopA shark swimming through deep blue open ocean water
• Joel_SharksTwo tiger sharks ascending through blue ocean water
• Karl CallwoodTwo divers approaching a sunken shipwreck hull underwater
• KinoA reef manta ray swims through open blue water
• Maahid PhotosA tiger shark cruising low over a pale sandy seabed in clear blue water
• Madeline LiuA hammerhead shark swimming through deep blue open ocean water
• Max van den OetelaarClear blue water inside a rocky Mediterranean sea cave with an arched rock opening
• Myra ProAerial view of longtail boats floating on turquoise water off Koh Lipe island in the Andaman Sea, Thailand.
• natary tA sea turtle swims over a coral reef in clear water
• NEOMA sea turtle swimming over a coral reef
• NEOMA scuba diver navigates a rocky underwater swim-through cavern
• NEOMA scuba diver swims above a colourful hard-coral reef in clear blue water
• NEOMA large school of fish swimming over a tropical coral reef
• NIR HIMIA scuba diver explores a sunken shipwreck in dark underwater surroundings
• Nott PeeraA reef manta ray glides over a shallow coral reef
• Oleksandr SushkoAn underwater view of a tropical coral reef with fish swimming above it in blue water
• Olga gaA sunken shipwreck resting on the seabed at depth, seen by a scuba diver underwater.
• Oliver SchwanebergA clownfish peeks out from the tentacles of its host anemone
• Oliver SchwanebergA small orange frogfish resting on the sandy seabed
• Roberto NicksonA diver plunges headfirst into the glowing turquoise water of the Dos Ojos cenote beneath a dark limestone cavern roof
• Sebastian Pena LambarriA manta ray gliding through blue open water, seen from below
• Sebastian Pena LambarriTwo scuba divers swim through deep blue water beside a reef
• SGRA school of fish swims over a healthy coral reef
• Simon SpringAerial view of forested limestone islands and turquoise water in Raja Ampat, Indonesia
• Stella WeisLarge granite boulders rising from clear shallow turquoise water in the Thai Andaman Sea.
• Swanson ChanA humpback whale and her calf swimming side by side just below the surface in sunlit blue water
• Swanson ChanA manta ray with remoras gliding through open blue water, its cephalic head fins extended and white underside visible