On land, seals may at times seem like bumbling, blubbery goofballs. But in their true element—the watery depths of the ocean—these sleek marine creatures are capable of elegant pirouettes that put even the most seasoned ballerinas to shame.

A breathtaking shot of this dazzling subsurface dance, as performed by four crab-eater seals frolicking beneath an iceberg, has earned French photographer Greg Lecoeur the prestigious Underwater Photographer of the Year Award, judges announced on Sunday.

Chosen from more than 5,500 images submitted by artists around the world, Lecoeur’s underwater portrait was praised by the selection committee as a “deserved and unanimous winner which combines photographic beauty, composition, exquisite light and delicate colors,” according to the organization’s website.

Greg Lecoeur, Frozen Mobile Home
Frozen Mobile Home: During an expedition in Antarctica Peninsula with filmmaker Florian Fisher and freediver Guillaume Nery, Lecoeur explored and documented the hidden face of this iceberg, where crab-eater seals have taken up residence on icebergs that drift at the whim of polar currents. © Greg Lecoeur / UPY2020

Cheekily dubbed Frozen Mobile Home, the photo pulls back the curtain on “a corner of the world that few people have witnessed,” said one judge. Almost three-dimensional in its vivaciousness, the image bursts off the screen thanks to the four cavorting seals, immortalized by Lecoeur during an expedition to Antarctica. Also lively is the iceberg itself, a moving kingdom that ferries nutrients from land to sea, fueling food chains and shuttling carbon between air and water. As sea ice continues to disappear from Earth’s poles, the photo is a shining beacon of the biodiversity humankind stands to lose.

Anita Kainrath, Lemon Shark Pups in Mangrove Nursery
Lemon Shark Pups in Mangrove Nursery: The Bahamas has been a shark sanctuary since 2011, but Mangroves aren’t protected yet and that’s where these lemon shark pups spend the first five to eight years of their lives. © Anita Kainrath / UPY 2020

More than 100 images and photography books received top billing on the competition’s website, with awards going to standouts in categories including Wide Angle, Macro, Wrecks, Behavior, Portrait, Black and White, Compact, Up and Coming and Marine Conservation. Taking the cake in the Up and Coming category was Anita Kainrath of Austria, who waded into knee-high, mosquito-infested waters in the Bahamas to capture Lemon Shark Pups in Mangrove Nursery. Her perseverance clearly paid off, one judge noted: After acclimating to Kainrath’s presence, the petite predators sidled up next to their photographer, bumping against her legs and trying to sneak a taste of the camera’s strobes.

Keigo Kawamura, Eyes
Eyes: There are thousands to tens of thousands of shrimps but only a few suitable places to shoot them. © Keigo Kawamura / UPY 2020

A striking entry called Eyes by Japan’s Keigo Kawamura received runner-up in the Macro category. Featuring an array of gleaming, blue-tinged unicorn shrimp—named for the long horn-like protrusions that sprout from their heads—the photo captures the rarely-seen crustaceans, which typically inhabit the sea at depths of up to 1,000 feet. Kawamura managed to snap the shrimp when they swam upwards to breathe, dutifully returning each evening for a 15-minute shoot in the hopes of catching the creatures at their best.

Renee Capozzola, Saudi Titanic
Saudi Titanic: The wreck sits halfway out of the water at the bow and in roughly 80 feet of water at the stern. © Renee Capozzola / UPY 2020

Another runner up, Saudi Titanic by American photographer Renee Capozzola, was highlighted in the Wrecks category. Taken in Saudi Arabia along the Gulf of Aqaba in the Red Sea, the image captures the remnants of a large cargo ship that’s been bobbing in the region’s waters for more than 30 years. Though the vessel itself is damaged well beyond repair, it teems with life, hosting schools of fish and groves of corals in its interior—a spectacular juxtaposition underscored by Capozzola’s split-shot approach, as one judge noted.

Henley Spiers, Constellation of Eagle Rays
Constellation of Eagle Rays: A school of uniquely patterned spotted eagle rays passes beneath Spiers on an unforgettable dive in the Maldives. © Henley Spiers / UPY 2020

After doggedly pursuing a school of spotted eagle rays in the Maldives, the United Kingdom’s Henley Spiers nabbed runner-up in the Black and White category with Constellation of Eagle Rays. The chase kept Spiers keenly aware of his land-adapted limbs, ill-suited for swimming compared with his subjects: “While the rays glided effortlessly, I swam my heart out trying to keep up and unlock the desired camera angle,” he wrote.

Pasquale Vassallo, Octopus Training
Octopus Training: At the end of a session of free diving, Vassallo noticed a soccer ball, in the distance and on the surface. Intrigued, he approached it and noticed that below it was an octopus being pulled along by the current. © Pasquale Vassallo / UPY 2020

In the Behavior category, Italy’s Pasquale Vassallo swept the competition with Octopus Training, which features a cephalopod bobbing along the underside of a soccer ball discarded at sea. “I think it is training for the next football World Cup!” Vassallo joked in the photo’s caption. But judge Alex Mustard notes that the image has a darker side as well: “The photo poignantly reminds us that oceans have, for too long, been a rubbish dump for all our old and unwanted trash.”

Pasquale Vassallo, Last Dawn, Last Gasp
Last Dawn, Last Gasp: This winter, Vassallo went diving with some local fishermen. During the dive, he followed the path of the fishing nets from the bottom to the surface. As the fishermen quickly hauled on the nets, he tried to take some shots of trapped fish still suffering in the mesh, such as this tuna. © Pasquale Vassallo / UPY 2020

Vassallo also took the prize in the Marine Conservation division with Last Dawn, Last Gasp, an appropriately breathtaking shot of a tuna snared in an ascending net, struggling in vain to wrest itself free. The fish’s wide-eyed gape takes center stage, mesh tugging at its open mouth. “If a picture paints a thousand words, then a great one asks a thousand questions,” wrote judge Peter Rowlands. “You know those questions; so do I. All we can do is show the truth to those who live above but can’t envisage the world below, and hope that they, too, start asking questions.”

Get the latest stories in your inbox every weekday.