Indonesia

Diananti sent me a great postcard representing Indonesian waterfall, located in the Bantimurung Bulusaraung National Park on south Sulawesi island of Indonesia. It contains thelimestone hill of Maros Pangkep, the second largest karst area in the world after the one in South-Eastern China.

The karst area is 43,750 hectares and has 286 caves which includes 16 pre-historic caves in Maros Regency and 17 pre-historic caves in Pangkep, Bone Regency.

There is a waterfall (Bantimurung Waterfall) with 2 caves, Dream Cave on the left side and Stone Cave on the right side of the waterfall, (inner) tubing is also can be done. I see it's also popular swimming spot. 

In 2001, International Union for Conservation of Nature (IUCN) Asia Regional Office and UNESCO World Heritage Center held the Asia-Pacific Forum on Karst Ecosystems and World Heritage in Malaysia which convinced Indonesia government to conserve Maros-Pangkep Karst. Finally in 2004, the Ministry of Forestry declared the allocation of 43,750 hectares of Bantimurung-Bulusaurung land for wildlife conservatory, nature park, conservation forest, limited production forest, production forest, as Bantimurung – Bulusaraung National Park.

Besides insectarium, butterfly breeding centers, managed by both the reserve administrator and residents serve complete the metamorphosis process of the butterflies. There are many butterflies around the waterfall, so Alfred Russel Wallace dubbed the place as the Butterfly Kingdom.

The Snake is one of the 12-year cycle of animals which appear in the Chinese zodiac and related to the Chinese calendar, as well as in related East Asian zodiacal systems. As another Year of the Snake has just began (10 February 2013) many countries issued a commemorative stamp in order to celebrate it. The Indonesian issue can be seen above. Thanks, diananti!