Sublangka Wildlife Sanctuary

Sublangka Wildlife Sanctuary protects roughly 155 sq km of forest across Lam Sonthi and Kut Ta Phet districts in northeastern Lop Buri. As a wildlife sanctuary rather than a national park, it exists primarily to protect species and habitat, and visitors are asked to request permission before arriving rather than assuming open trail access. Call the office on 0 3645 1936 ahead of a visit to confirm what’s currently open — don’t plan a trip here the way you would to a fully public park.

Where access is granted, two marked nature trails cover the sanctuary’s more accessible ground. The Huai Prik-Pha Phueng cave trail runs about 3.2 km round trip, roughly 2.5 hours on foot, passing Pha Phueng cave and cliff along the way. The Huai Pradu trail is shorter, about 1.4-1.8 km, and partly covered by raft rather than on foot, leading past Samui Kui cave and Pha Nok cave. Both are relatively easy walking, but neither is a boardwalk-and-signage nature centre — expect basic forest trail conditions and minimal facilities.

Surveys of the sanctuary have recorded 29 mammal species, 78 bird species, 22 reptile species, and 8 amphibian species, including Asian elephants among the larger mammals. That’s a genuine reflection of intact forest habitat rather than a marketing claim, and it’s also why access stays limited — casual foot traffic through core habitat works against the conservation purpose the sanctuary exists for. Sightings on any single visit aren’t guaranteed; this is protected forest, not a wildlife park with staged encounters.

Watch out: Don’t turn up expecting national-park-style facilities or a staffed visitor centre at the gate. This is a working conservation office first, with permission-based access to the trails second.

Insider Tip: Call ahead with a specific date and the trail you want to walk — the office is more likely to accommodate a visit when they know who’s coming and when, rather than a same-day request.

For a comparable Lop Buri sanctuary with its own access rules, see Khao Som Phot Wildlife Sanctuary, and Prang Nang Phom Hom for a built heritage stop in the same Lam Sonthi district. The Lop Buri destination guide covers the wider province, including the town’s more famous ruins.