Underwater photography is not easy - trying to keep yourself still fighting against currents, hoping the fish stays still long enough for a photo and praying that your camera hasn't sprung a leak somewhere.
It's truly an art to master, and the best at these underwater photoshoots were honoured in the 2020 Underwater Photographer of the Year competition.
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This year's winner is French photographer Greg Lecoeur - a previous National Geographic nature photographer of the year winner - for his 'Frozen Mobile Home' shot of crab-eater seals swimming underneath an iceberg in the Antarctica Peninsula.
"The balletic rhythm of these crab-eater seals and the ethereal landscape of the pitted iceberg creates a composition that draws you into a corner of the world that few people have witnessed," the judges commented on his photo.
He also won the category for Best Wide Angle.
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Some of the other categories included best Up-and-Coming Photographer, British Underwater Photographer, Most Promising British Photographer, Marine Conservation Photographer and Underwater Photography Book.
From seahorses to fish to coral reefs to even people, this collection of underwater vistas is something out-of-this-world and reminds us how wonderful our planet truly is.
See the other winners below:
Up and Coming Underwater Photographer of the Year
Anita Kainrath for 'Lemon shark pups in mangrove nursery'.
British Underwater Photographer of the Year
Nicholas More for 'Rabbit Fish Zoom Blur'.
Most Promising British Underwater Photographer
Nur Tucker for 'Commotion in the Ocean'.
READ: Learning to swim like a fish in Sodwana Bay: What you should know about doing your PADI certification
Marine Conservation Photographer of the Year
Pasquale Vassallo for 'Last Dawn, Last Gasp'.
Underwater Photography Book of the Year
Pietro Formis for 'AQUA: Mysteries of the underwater world'.
Hannes Klostermann for 'Goby Goodness'.
Tobias Friedrich for 'The Engine'.
Pasquale Vassallo for 'Octopus Training'.
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Lilian Koh for 'Butterfly Effect'.
Best Black and White
Mok Wai Hoe for 'Layered Thoughts'.
Best British Waters Compact
Colin Garrett for 'Smile'.
Best British Waters Living Together
Dan Bolt for 'Pier Nursery'.
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