King Chulalongkorn reportedly discovered this 13th- to 14th-century Khmer settlement while traveling along the Kwai Noi River. The restored remains of the city range from mere foundations to a largely intact, well-preserved monument and building complex. There are also examples of Khmer statues and pottery and a prehistoric burial site. You can navigate the expansive grounds with the aid of taped commentary in English, Thai, or French, available at the park's entrance.
Bicycle rentals cost around B20 per hour. If you don't want to make the 45-minute drive from Kanchanaburi, take the train to Tha Kilen Station (one hour; B15); the park is a 1-km (½-mile) walk west. There are lodgings and a small café on the grounds.
Tha Kilen, 71000, Thailand