Uthai Thani Day Trips: Hup Pa Tat's Lost Valley and Huai Kha Khaeng
Two of Thailand's most extraordinary nature sites hide in Uthai Thani's west, and almost nobody goes to either. You will need a car — rent one in Nakhon Sawan or Uthai Thani town, or hire a driver for the day (roughly ฿1,500–2,000 with fuel, negotiated through your hotel) — and both trips reward an early start. Trip 1: Hup Pa Tat — The Lost Valley About 50 km southwest of town in Lan Sak district, a short tunnel through limestone opens into Hup Pa Tat: a collapsed cave valley sealed by cliffs, where a primeval forest of giant tat palms and ancient trees grows in cool, humid shade, cut off from the outside world for millennia. A marked nature trail (about 30–45 minutes) loops through it among ferns, limestone boulders and birdsong. It genuinely feels like stepping into a dinosaur film set. Entry is a small fee (typically ฿20–40 range for Thai visitors, more for foreign visitors — check the gate). Combine with nearby Tham Khao Wong area temples or continue west. Trip 2: Huai...