Divers swim beside millions of silverside fish at Devil's Grotto, Cayman Islands. Swimming in unison, millions of silverside fish dwarf the divers. The fish create waves of silver light as they move around the grottos that lie beneath the surface of the Caribbean Sea. These amazing photographs were captured by Belgian photographer Ellen Cuylaerts, 44, on a diving trip to the Devil's Grotto, Cayman Islands. (Photo by Ellen Cuylaerts/This is Guavo Media)

“Diver in Magic Kingdom”. Green Lake (Grüner See) is located Tragöss Austria. In spring snowmelt raises the lake level about 10 meters. This phenomenon, which lasts only a few weeks covering the hiking trails, meadows, trees. The result is magical to watch diving landscapes. Photo location: Grüner See at Tragöss, Austria. (Photo and caption by Marc Henauer/National Geographic Photo Contest)

These unique photos capture the moment a boy has his teeth picked clean by amazing underwater shrimp. These fascinating creatures spend their lives diving inside the mouths of fish to remove the parasites that lurk there. Russell Laman imitated the behaviour of the surrounding fish swarm to entice the cleaner shrimp into his mouth whilst snorkelling with his father Tim Laman in Bali, Indonesia. The 13-year-old queued with the waiting fish and then opened his mouth when the shrimps came near. (Photo by Tim Laman/Caters News)

4-year-old Benji, making waves at Arpoador Beach in Rio De Janeiro, Brazil on December 12, 2024. The Jack Russell Terrier who began catching waves one year ago, has become a fixture along Rio's iconic Ipanema Beach. His skills not only impress fellow surfers but also delights beachgoers, who often pause to admire the bond between man and dog riding the surf. (Photo by Bob Karp/ZUMA Press Wire)

A reveller takes part in an annual block party known as “Ceu na Terra” (Heaven on Earth), during carnival festivities in Rio de Janeiro, Brazil February 3, 2018. (Photo by Pilar Olivares/Reuters)

A woman visits the mirror installation “Mar de Espelhos” (Sea of Mirrors) ahead of its opening in Rio de Janeiro, Brazil on June 13, 2023. (Photo by Ricardo Moraes/Reuters)

Raquel Poti performs on stilts during the Amigos da Onca street Carnival party, in Rio de Janeiro, Brazil, Saturday, February 10, 2024. (Photo by Bruna Prado/AP Photo)

A drone view shows vehicles in the area affected by the floods, in Encantado, Rio Grande do Sul state, Brazil, on May 3, 2024. (Photo by Diego Vara/Reuters)