A fuzzy caterpillar on a basil plant in west Bengal, India on December 25, 2023. The caterpillar’s defence system is its hair, which has microscopic barbs that break off easily in the skin of would-be predators. (Photo by Soumyabrata Roy/NurPhoto/Rex Features/Shutterstock)

Ecuador's Ronald Zabala G., riding, Forever Young Wundermaske, fall off their horse during the Equestrian Cross Country competition at Chateau de Versailles for the 2024 Summer Olympics, Sunday, July 28, 2024, in Versailles, France. (Photo by Mosa'ab Elshamy/AP Photo)

Indonesian women sit on a hill as the Suralaya coal power plant looms in the background in Cilegon, Indonesia, on January 8, 2023. A plan for how Indonesia will spend $20 billion to transition to cleaner energy was submitted Wednesday, Aug. 16, to the government and its financing partners, the planners said. (Photo by Dita Alangkara/AP Photo)

Spot-billed pelican interact on the banks of an artificial lake in Colombo on September 28, 2021. (Photo by Ishara S. Kodikara/AFP Photo)

Revellers ride during the 54th annual brass band festival in the Serbian village of Guca August 7, 2014. Every year Guca is swamped by thousands of people taking part in the celebration of brass band music. (Photo by Marko Djurica/Reuters)

A diver dressed as “Mermaid of the Serpent Depths” performs in front of a sign marking the Lunar New Year of the Snake inside an aquarium at Manila Ocean Park on January 28, 2025. (Photo by Jam Sta Rosa/AFP Photo)

Models pose during the Macgraw presentation show during Afterpay Australian Fashion Week 2023 on May 18, 2023 in Sydney, Australia. (Photo by James Gourley/Getty Images for AAFW)

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.