Underwater photographer of the year 2021 and wide angle category winner. Sharks’ Skylight by Renee Capozzola (US), taken near shore of island of Mo’orea, French Polynesia. (Photo by Renee Capozzola/Underwater Photographer of the Year 2021)





Wide angle category runner-up. Gothic Chamber by Martin Broen (US), taken in Cenote Monkey Dust, Mexico. (Photo by Martin Broen/Underwater Photographer of the Year 2021)





Macro category winner. Pontohi Pigmy Seahorse by Galice Hoarau (Norway), taken in Siladen Back, Indonesia. (Photo by Galice Hoarau/Underwater Photographer of the Year 2021)





Macro category runner-up. Larval Lionfish by Steven Kovacs (US), taken in Palm Beach, Florida. (Photo by Steven Kovacs/Underwater Photographer of the Year 2021)





Wrecks category winner. Bowlander by Tobias Friedrich (Germany), taken near Nassau, Bahamas. (Photo by Tobias Friedrich/Underwater Photographer of the Year 2021)





Wrecks category runner-up. Reclaimed by the Ocean by Grant Thomas (UK), taken in Aqaba, Jordan. (Photo by Grant Thomas/Underwater Photographer of the Year 2021)





Behaviour category winner. A Striped Marlin in a High Speed Hunt by Karim Iliya (US), taken in San Carlos, Baja California, Mexico. (Photo by Karim Iliya/Underwater Photographer of the Year 2021)





Behaviour category runner-up. Face to Face by Zhang Jinggong (China), two punk blenny or Mohican blenny taken in Minabe, Wakayama, Japan. (Photo by Zhang Jinggong/Underwater Photographer of the Year 2021)





Portrait category winner. Guardian Deity by Ryohei Ito (Japan), Asian sheepshead wrasse taken in Tateyama, Chiba, Japan. (Photo by Ryohei Ito/Underwater Photographer of the Year 2021)





Portrait category runner-up. Japanese Manefish by Keigo Kawamura (Japan), taken in Ose, Japan. (Photo by Keigo Kawamura/Underwater Photographer of the Year 2021)





Black & White category winner. The Cut by Diana Fernie (Australia), taken in Leru Cut, Solomon Islands. (Photo by Diana Fernie/Underwater Photographer of the Year 2021)





Black & white category runner-up. Time Travel by Martin Broen (US), taken in Cenote Chan Hol (Little Hole), Mexico. (Photo by Martin Broen/Underwater Photographer of the Year 2021)





Compact category winner. Doule (Kuhlia Rupestris) Near the Surface by Jack Berthomier (New Caledonia), taken in Ouenghi River, New Caledonia. (Photo by Jack Berthomier/Underwater Photographer of the Year 2021)





Compact category runner-up. Rainbow Goby by ManBd (Malaysia), hairy panda goby taken in Lembeh, Indonesia. (Photo by ManBd/Underwater Photographer of the Year 2021)





Up & coming category winner and most promising British underwater photographer 2021. Tying In by SJ Alice Bennett (Mexico), taken in Cenote Mayan Blue, Mexico. (Photo by SJ Alice Bennett/Underwater Photographer of the Year 2021)





Up & coming category runner-up. Toward Shining Light by Ryohei Ito (Japan), manta ray taken in Maaya lagoon, North Ari Atoll, Maldives. (Photo by Ryohei Ito/Underwater Photographer of the Year 2021)





British underwater photographer of the year 2021, British waters wide angle category winner and My Backyard category winner. While You Sleep by Mark Kirkland (UK), common frog taken in Malls Mire, Glasgow, Scotland. (Photo by Mark Kirkland/Underwater Photographer of the Year 2021)





British waters wide angle category runner-up. The Great Migration by Mark Kirkland (UK), basking shark taken in Isle of Coll, Inner Hebrides, Scotland. (Photo by Mark Kirkland/Underwater Photographer of the Year 2021)





British waters macro winner. Portrait of a Variable Blenny by Malcolm Nimmo (UK), taken in Plymouth Sound, England. (Photo by Malcolm Nimmo/Underwater Photographer of the Year 2021)





British waters macro runner-up. Stalkie on Bootlace Weed by Alex Tattersall (UK), stalked jellyfish taken in Kimmeridge Bay, Dorset, England. (Photo by Alex Tattersall/Underwater Photographer of the Year 2021)





British waters living together category winner. SS Hispania by Kirsty Andrews (UK), taken in the Sound of Mull, Scotland. (Photo by Kirsty Andrews/Underwater Photographer of the Year 2021)





British waters living together category runner-up. Crab Affairs by Atanas Petrov (UK), a couple of brown crabs taken on SS Rosalie, Weybourne, England. (Photo by Atanas Petrov/Underwater Photographer of the Year 2021)





British waters compact category winner. Sunrise Mute Swan Feeding Underwater by Ian Wade (UK), taken in St Georges Park, Bristol. (Photo by Ian Wade/Underwater Photographer of the Year 2021)





British waters compact category runner-up. Hold Tight by Sandra Stalker (UK), underwater meadow taken in Kimmeridge Bay, Dorset, England. (Photo by Sandra Stalker/Underwater Photographer of the Year 2021)





Marine conservation photographer of the year 2021. Aerial View of a Crowded Island in Guna Yala by Karim Iliya (US) taken in Guna Yala, Panama. (Photo by Karim Iliya/Underwater Photographer of the Year 2021)





Marine conservation category runner-up. The Yellow Candy by Pasquale Vassallo (Italy), taken in Campi Flegrei, Italy. (Photo by Pasquale Vassallo/Underwater Photographer of the Year 2021)