A beautiful image of a pink dolphin poking its nose out of the Amazon river under a pastel-hued sunset earned California resident Kat Zhou the title of the 2023 Underwater Photographer of the Year

Over 6,000 entries from photographers in 72 countries were submitted for consideration in the U.K.-based annual competition, which “celebrates photography beneath the surface of the ocean, lakes, rivers and even swimming pools,” per a press release, and awarded its first winner in 1965. In addition to claiming the top honor, Zhou was also named Up & Coming Photographer of the Year for her striking shot of the endangered pink river dolphin, entitled “Boto Encantado.” 

“There’s a legend among locals that river dolphins, or ‘botos’, can transform into handsome men known as ‘boto encantado’ to seduce women. Though I did not witness the transformation, I was enchanted by these beautiful mammals in a different way,” she shared in a statement.



“After seeing how botos would sometimes bring their beaks above water, I wanted a split shot at sunset,” she said. “Though the water was so dark that I was shooting blind, this dolphin gave me a perfect pose and smile!

Competition judge Alex Mustard called the photo “by far the best image we’ve ever seen of this species,” later adding: “It is appropriate that the Amazon, as the world’s mightiest river, has produced our overall winner.”

Additional winners placed in 12 other categories, including Portrait, Behavior, Wrecks, Wide Angle, and more. Scroll through to see the standouts, or click here to see all of the commended images from the Underwater Photographer of the Year competition.


Marelux Wide Angle

"Fade" (J. Gregory Sherman, Cayman Islands)
"Fade" (J. Gregory Sherman, Cayman Islands)

Marelux Macro







"The Trunk" (Suliman Alatiqi, Thailand)
"The Trunk" (Suliman Alatiqi, Thailand)

Black & White

"El Blanco - The White One" (Don Silock, Argentina)
"El Blanco - The White One" (Don Silock, Argentina)



British Waters Wide Angle


British Waters Macro


British Waters Living Together


British Waters Compact

"Beauty In The Blow Hole" (Tony Reed, England)
"Beauty In The Blow Hole" (Tony Reed, England)

Save our Seas Foundation Marine Conservation