Recently, American Jeb Corliss jumped from a helicopter 1.8 km (6,000 feet) up and “flew” with his wingsuit, though China’s Tianmen Cave. While not the first time someone has flown through the cave, it is the first time it happened in a wingsuit.
Tianmen Cave is actually just a huge natural opening in the side of Mount Tianmen, approximately 130 meters (426 feet) high, 30 meters (98 feet) wide and 60 meters (196 feet) thick. It was created when the side cliff face around the mountain collapsed, which opened the cross-section of cave. Interesting, the collapse is actually documented as happening in the year 263.
In 1999, more than 800 million people watched a group of stunt pilots became the first to fly through it in an attempt to get into the Guiness Book of World Records.
Take a gander at the following videos highlighting the flying feats.
Source: Planetmountain via Caving News