Model Alessandra Ambrosio is seen at Coachella Music & Arts Festival at the Empire Polo Club on Friday, April 14, 2017, in Indio, Calif. (Photo by Hollywood To You/Star Max/GC Images)

Family and celebrities arrive at Kylie Jenner's 21st birthday celebration at Craig's in West Hollywood, CA on August 9, 2018. Pictured: Kim Kardashian. (Photo by Splash News and Pictures)

Fans attend the World Premiere Of Marvel Studios' “Captain America: Brave New World” at TCL Chinese Theatre on February 11, 2025 in Hollywood, California. (Photo by Frazer Harrison/WireImage)

Actress and singer Rachel Zegler attends the World Premiere of Disney's Snow White at El Capitan Theatre in Hollywood, California on March 15, 2025. (Photo by Rodin Eckenroth/Getty Images for Disney)

DJ Drama (R) arrives at America's Got Talent is seen on March 28, 2025 in Pasadena, California. (Photo by Hollywood To You/Star Max/GC Images)

If you’re afraid of heights, caves, the dark, suffer from claustrophobia or vertigo, this might not be for you, but if not, a small Welsh town has the perfect subterranean adventure for you: the world’s largest underground trampoline. Just unveiled in Blaenau Ffestiniog, North Wales, Bounce Below is a network of trampolines and slides mounted to the walls of an abandoned slate mine at heights of 20 feet to 180 feet off the ground. Visitors are welcome to climb, bounce, slide, and jump in the netting amidst a technicolor light show.