Tham Phothisat (Thailand’s Guilin)

Tham Phothisat is a 15-chamber cave system inside a limestone hill in Nong Hin district, Loei — TAT markets it as “Thailand’s Guilin” for the karst scenery around the entrance, though the comparison is about the look of the rock, not the scale of China’s Guilin. Entry is free, but you’ll want a local guide: the cave has no electricity and the passages between chambers aren’t obvious on your own.

Each of the 15 chambers has its own name and character — Tham Sum Badan at the entrance, Thong Phra Rong with its dense stalactite-and-stalagmite formations, and a string of smaller cavities threading further into the hill. Steep, rough cliff walls and thick tree roots hang through some of the passages, and several sections narrow enough that you’ll be ducking or turning sideways. A guide from the Ban Puan Phu tambon administration office (call 0 4289 4254 ahead) costs around 100 THB per group of up to ten people and knows which chambers are worth the detour versus which are tight dead ends. Bring your own flashlight regardless — there’s no cave lighting installed, and a guide’s torch alone isn’t enough for photos.

Getting to the cave mouth is part of the experience: from Nong Hin market, follow the road toward Suan Hin Pha Ngam (the Rock Garden) for about 2 km, park near Wat Tham Phothisat, then walk roughly 300 metres through bamboo forest to the entrance. Budget at least an hour inside once you start — this isn’t a five-minute photo stop.

Insider Tip: Combine the visit with Suan Hin Pha Ngam (the Rock Garden) just up the same road — most visitors do both in a single half-day out of Nong Hin rather than a special trip for either one alone.

Watch out: No electricity means no cave lighting and no phone signal once you’re inside — tell someone your plan before you head in, and don’t attempt the deeper chambers without the guide.

The cave sits well off the main tourist circuit in Loei, a mountain province better known for cool-season temperatures than caving, which keeps crowds thin even on weekends. Wear closed shoes with grip — the limestone floor is uneven and damp in places — and pack a light layer, since the interior runs noticeably cooler than the bamboo forest outside.