The Llechwedd Caverns in Blaenau Ffestiniog hosts a trampoline playground called Bounce Below. One of the main attractions in the area boasts huge springy nets suspended underground creating a unique subterranean bounce zone, especially loved by teenagers. There are also ladders and slides all inside the giant cave, twice the size of St. Paul's Cathedral.
First, visitors take an old mine train, they then can see a staggering maze of 929 square meters of nets. The park has three levels of trampolines at 6m, 20m and the tallest is 50m above the ground. Visitors can go on an industrial-sized slide, crawl through a tunnel, or descend a spiral staircase to get from one level to another.
Bounce Below Park is open year round, during high season in the summer it is open more days per week and offers longer hours. Check the park's schedule before planning your visit.
The cave was formed as the result of an old mining quarry, and visitors can see the remnants of a bygone era. Wales produces some of the world’s best slate. It has been used since the Roman times to build castles. In the Victorian-era, miners blasted the precious material out of the side of mountains. However, with other construction materials becoming available, the demand for slate dropped and mines were abandoned. If you are interested in the subject, the Llechwedd caverns offer tours of its slate mining history.