This is the place where the Hup Kraphong Royal Development Project is located. King Bhumibhol initiated the project in 1962 with the support of Israel to help local farmers experiencing agricultural difficulties as a result from infertile soil. Several studies on soil improvement, various crash crops and production efficiency have been conducted. This is one Thailand's leading Royal Projects where travelers can visit to purchase farm produce, crafts (usually made of hemp) and folk art products which have been exported to many Asian and European countries.

Tham Khao Luang

The cave is located approximately five kilometers from Khao Wang. Smaller in size, the cave is regarded as the largest and most important in the province. This is due to the fact that it houses a Buddha image cast under the royal command of King Rama V as a dedication to King Rama III and King Rama IV. At the foot of Khao Luang Hill, a large monastery locally known asWat Tham Klaep or Wat Bun-thawi is located. Attractions within the compound are a large multi-purpose hall and a chapel laden with beautifully carved door panels.