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Phnom Kampong Trach

A karst hill near Kep hollowed into caves and a collapsed sinkhole open to the sky, with shrines inside.

Updated 31 August 2026

Typecave
WhereKampot
Nearest cityKep
Best seasonNovember to March
Time to allowTwo hours
Getting thereAbout 15 km northeast of Kep near Kampong Trach town
EntrySmall fee; village guides

Phnom Kampong Trach is a limestone hill riddled with caves, and the sequence inside is what makes it: passages lead from the entrance through chambers with reclining Buddha shrines and stalactites, and then open into a large collapsed sinkhole where the roof has fallen in, leaving a green well of vines and trees with sunlight pouring down and the rock walls rising around. Further passages continue beyond. Local children guide visitors through for a small payment and know the routes. The surrounding karst country is dotted with similar hills, and the area is quiet farming land between Kampot and the Vietnamese border. It is usually visited from Kep or Kampot as a half-day.

Highlights

  • The collapsed sinkhole - an open green well with light falling in.
  • Cave shrines - reclining Buddhas in the chambers along the route.
  • Stalactites - formations through the connecting passages.
  • Karst country - limestone hills rising from farmland outside.

When to go

November to March for dry going; the passages are wet and slippery in the rains. Midday sun makes the sinkhole most dramatic. Mornings are cooler for the walk in.

Before you go

Passages are dark, low in places and slippery; a torch and reasonable footwear matter. Children guide and expect payment, and several may attach themselves at once. There are no facilities. Bats and their smell are part of the experience.

Nearby

Kep lies southwest; Kampot is west.

What to pack for Phnom Kampong Trach

Chosen from what this place is for. Tap a kit for the full checklist.

  • Head torch + spare batteries - Hands-free light is essential; caves are truly dark. Find on Amazon
  • Modest clothing - Shoulders and knees covered - the single most common requirement. Find on Amazon
  • Grippy closed shoes - Cave floors are wet, muddy and slick with formations. Find on Amazon
  • A scarf or shawl - To cover the head or shoulders on entry; women especially at mosques. Find on Amazon

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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.

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