Khao Sok National Park, located in Surat Thani, is just 73 km (about a 1 hour and 15-minute drive) north of Khao Lak. This park is home to one of the world's oldest evergreen rainforests, featuring expansive lakes, limestone mountains, and dense flora. Accessible by bus, minibus, or ferry from Khao Lak or Krabi, it offers two main hotspots: the headquarters in Khao Sok Village and the stunning Khao Sok Lake (Cheow Lan Lake), 67 km to the east. The lake is famous for its raft houses, waterfalls, caves, trails, campsites, and breathtaking viewpoints, making it a must-visit destination.