The 50-sq-km Khao Phanom Bencha National Park protects a dramatic area of virgin rainforest along the spine of 1350m-high Khao Phanom Bencha, just 20km north of Krabi. The park is full of scenic waterfalls, including the 11-tiered Huay To Falls, just 500m from the park headquarters. Nearby and almost as dramatic are Huay Sadeh Falls and Khlong Haeng Falls. On the way into the park you can visit Tham Pheung, a dramatic cave with shimmering mineral stalactites and stalagmites.