An adventure awaits those who are not afraid of heights, darkness, and caves. Located in the small Welsh town of Blaenau Ffestiniog, an abandoned slate mine is now the home of the world’s largest underground trampoline called [Bounce Below](http://www.bouncebelow.net/). It will be open to the public on July 4, 2014. Visitors can bounce, climb, and slide to their hearts content while a technicolor light show gives a beautiful visual display. There are three giant trampolines attached to the sides of the walls of the mine at heights of 20 to 180 feet off the ground. There’s also a 60 foot slide to add to the experience.
