An example of one of nature's most stunning geological processes can be observed by visiting a rather special cave in Guilin, China. The natural limestone cave, known as the Reed Flute Cave, dates back over 180 million years and exhibits some truly breath-taking examples of stalagmites, stalactites and columns.
Stretching back over 240 metres, visitors are able to take the hour-long tour of the cave following a path which rather helpfully forms a natural U-shape so the entrance and exit appear next to one another.
As you step into the cave, you'll immediately notice its atmosphere which has been tastefully enhanced with the addition of coloured lights gently illuminating the cave and bringing out its natural beauty. As you would expect, the cave is very dark, which makes it pretty difficult for visitors to take decent photographs once inside.
With the help of local guided tours you can also discover other wondrous attractions close to the Reed Flute Cave. Most of these tours start from the city of Guilin.