| Gua Tempurung, Malaysia |
Gua Tempurung (Tempurung Cave) has existed since early 8000 B.C. and it is one of the larger cave systems found in the scenic limestone hills of Perak. In fact, it is the largest natural limestone structure in Peninsular Malaysia. The cave measures 1.9 km in length and 120 metres in height. It is a cavern inside Gunung Tempurung (Tempurung Mountain) standing 497 metres high and is about 250 million years old.
Description excerpts from guatempurung.com