Sai Yok National Park : Kanchanaburi, Thailand

Sai Yok National Park is not as well developed as the other national parks, but it is Kanchanaburi's most accessible wilderness areas. Inside the main entrance of the park you can find limestone caves, the remains of a bridge on the Death Railway and Japanese ranges (actually little more than piles of bricks). There is also a network of clear streams that bubble up from sources in the park, and a cave where people want to see clouds of bats stream out at dusk. Unfortunately the park is not a detailed hiking maps or much in the way of visitor information to English speakers.

Near the Visitors Center is misleading Nam Tok Sai Yok Yai (Sai Yok Yai waterfall), which is better described as a small stream cascading over a waterfall. It flows into the Mae Nam Noi Khwae near the suspension bridge. It was in this park, the famous Russian roulette scenes in the 1978 film The Deer Hunter was filmed.

Noteworthy fauna in the park, the Kitti's Hog-nosed bats (smallest mammal), the world's regal crabs, barking deer, blue Pittas, crowned hornbills, gibbons, Malayan porcupine, Slow Loris and Serowe. There is also wild elephants which occasionally cross from Myanmar.

Forestry Department bungalows (0 2562 0760; bungalows 800-2100B) available at Sai Yok National Park, drag them to six. Incredibly beautiful is the number of houses near the suspension bridge, which was completely deserted on weekdays during the rainy season - just you and the River. One of the best is Saiyok See Raft (0 3451 4194, s 700B) who rooms with private bathroom, which looks at the stream has. Ask when booking to arrange meals and food options are limited. There are a number of fast food stalls near the Visitors Center.

The entrance of the park is approximately 100 miles northwest of Kanchanaburi and 5 km from Hwy 323rd You can Sangkhlaburi Kanchanaburi-Bus (50B, two hours, frequencies) to turn off and hire a motorbike taxi from the main road to the entrance. Tell the driver you want 'name Tok Sai Yok Yai. The last bus back to Kanchanaburi crossing at about 3:30.

From raft houses near the bridge, you can rent long tail, both for sightseeing along the river and caves or Daowadung Tham Tham Lawa. Rent a long tail costs about 400B per hour, but rates are negotiable.