Heavenly Concert Hall - Yaolin Wonderland Is A Group Of Limestone Caves Formed By Corrosion Through The Ages. With Stalagmites And Peak Stones In Fantastic Shapes And Colours As Well As Murmuring Streams, Pools And Cliffs, Its Halls Are Interconnected With Passages And Many Chambers. Yaolin Wonderland Stretches One Kilometer In Depth And Covers An Area Of 28,000 Square Meters. It Ranks Second On The List Of Newly Developed Natural Scenic Spots Among The Forty Best Tourist Resorts In China. Photo