(ECNS)--An overhanging glass sightseeing platform has begun trial operation at a geological park.
The 80-meter-long platform spans the ridges of a 1,450-meter-high mountain.
It extends 34 meters over a 613-meter-deep natural sinkhole.
Visitors tiptoe on the platform and get an amazing view of the park's natural wonders.
The structure has two floors, both with coffee houses.