As of today, peak season now, through ~August 31. Earth Exhibit tracks the live conditions and flags it the moment it is on.
In the Wulingyuan Scenic Area of Hunan Province, over 3,000 quartzite sandstone pillars rise from deep subtropical valleys.
When overnight rain gives way to stable morning air, a temperature inversion traps dense fog between 600 and 800 meters elevation, leaving only the pillar tops exposed above a seamless white surface.
The effect transforms the landscape into an archipelago of stone islands floating on cloud, the same image that inspired the Hallelujah Mountains in James Cameron's Avatar.
Pillars reach heights exceeding 200 meters, some topping 1,000 meters above sea level, and the cloud sea can persist from before dawn until mid-morning before solar heating burns it off.
The geological foundation is unusual: unlike classic karst, these formations are the product of physical erosion rather than chemical dissolution.
Thick layers of hard quartz sandstone interspersed with softer siltstone were uplifted and then sculpted over hundreds of millions of years by water, frost wedging, and root intrusion, carving the narrow pillars that remain today.
Where to see it
A taste of where to see it. The full map, exact coordinates and the best timing for each spot live in the app.
| Viewing spots |
|---|
| Tianzi Mountain Summit & Helong Park Viewpoint (天子山/贺龙公园) |
| Yuanjiajie Scenic Area & Avatar Hallelujah Mountain (袁家界/哈利路亚山) |
| + 1 more spot, with exact coordinates and timing, in the app → |
This is the short version
This page shows a taste. The app has the full list of where to see this, the exact timing, and live conditions for 1,000+ natural phenomena worldwide, so you know the moment one is genuinely worth the trip.