Than Sadet National Park is located on the eastern coast of Thailand, primarily on Koh Phangan island. Established in 1980, the park covers an area of approximately 20 square kilometers and is known for its stunning natural beauty, including lush forests, waterfalls, and pristine beaches. It is home to diverse wildlife and offers various outdoor activities such as hiking and swimming. The park features several notable attractions, including the Than Sadet Waterfall, which has been a favorite spot for visitors for generations. The area is also significant for its cultural heritage, as it has historical ties to the Thai royal family, who visited the site in the past.