Underground Grand Canyon 地下大峡谷

About Underground Grand Canyon

The cave passage measures about 6,100 metres in total, of which roughly 3,100 metres has been opened up for visiting. Rather than a chamber system, the passage is cut as a gorge close to 100 metres deep, with near-vertical walls that open out to more than a hundred metres across in places and pinch down elsewhere to a gap only wide enough for one person. An underground river flows through it year round and drops over a series of falls, which the Linyi agriculture bureau notes is unusual among caves in northern China; a boat run of about a kilometre has been developed along it. Linyi municipal government counts more than a hundred named features inside, grouped as one river, three springs, five waterfalls and five 'palaces', among varied stalactite formations.

The cave is the core of a group of underground attractions in this part of the Yimeng mountains, occupying a site of some 32 square kilometres, and it is administered within a national 5A tourist area that also takes in the separate Firefly Water Cave, a roughly 1,200-metre cave holding a karst lake a short distance away.

What to look for

• The gorge-shaped main passage, cut close to 100 metres deep with sheer walls
• The points where the passage widens past 100 metres and the squeezes where only one person fits
• The underground river and its waterfalls, which run through the year
• Stalactite formations among the hundred-odd named features counted as one river, three springs, five waterfalls and five 'palaces'
• The separate Firefly Water Cave, about 1,200 metres long with a karst lake, administered in the same tourist area

Location & getting there

Getting to Underground Grand Canyon

Use an authorised visitor route. Cave sections, geological sites and access roads can close independently, so confirm the area that your ticket covers.

• Search for 地下大峡谷 with 临沂市 and 沂水县.