Khao Yai Entrance Fees and Rules: Complete Official Guide (2026) Knowing the Khao Yai entrance fees and rules is essential for planning a smooth, hassle-free trip to Thailand’s oldest UNESCO World Heritage park. Located 180 kilometers (112 miles) northeast of Bangkok—a 2.5 to 3-hour drive—Khao Yai National Park costs 400 THB for foreign adults and […]