Mount Huashan located 120km from the City Xi'an (about 1 hour by bullet train) has been named "worlds most dangerous / deadliest hiking trail" by many. The entirety of Mount Huashan is quite spectacular with its many different peaks, the highest being the south peak at 2,154 metres. Mount Hua is the western mountain of the Five Great Mountains of China
Going to Mount Huashan is breath taking, but honestly the highlight and what brings many people to the mountains is the famous plank walk "plank road in the sky" as shown throughout this video. the plank walk leaves you walking 2km in the sky with nothing but a small harness.