Tham Khao Wong Forest Park 

It is located in the south west of Uthai Thani, being a part of the Western Forest next to Phu Toei National Park in Suphan Buri. The topography includes limestone mountains which are high, undulated and steep, with more than 35% of slope. It is a water source, flowing through Amphoe Ban Rai, Uthai Thani. 

Interesting Attractions 
Tham Phu Wai, a large cave, with a spacious area housing stalagmites and stalactites in various forms, such as pagoda and basin. Visitors have to climb up to the entrance on the mountain slope. The air is fresh and well-ventilated. There is a hole leading through to the opposite part of the mountain. 9 species of bats live in the cave. Visitors can contact a guide at the entrance of the cave. It takes about an hour to walk through the hole. Behind Tham Phu Wai, there is aother small cave: Tham Thep Mali or Tham Phaya Nak, which is quite deep but naturally attractive with stalagmites and stalactites. See the wide splendid view on the top of Khao Phu Wai which is 700 metres high from sea level. Additionally, the deciduous dipterocarp forest on the mountain ridge is quite unspoilt. 

To get there, from Amphoe Ban Rai, take Highway 3011, Ban Rai - Phu Bon route, passing the bend in front of the Chaopho Khao Rak Shrine until getting to the intersection with the direction sign of Ban I Lum – Ban Khao Phu Toei. Turn right and go on for about 6 km. Drive pass the entrance of Wat Tham Khao Wong for another 3 km. before getting to the entrance of Tham Phu Wai.