Lamlom Klong Ngu Adventure – Stone Pillar & Swallow Cave

Kanchanaburi Province, Thailand

Season: March – April

Price: 800 AUD / person

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Hidden deep within the rainforest of Kanchanaburi, Lamlom Klong Ngu is one of Thailand’s most thrilling natural adventures — a place where rivers disappear underground, limestone cathedrals rise from darkness, and courage is rewarded with unforgettable sights.

This expedition takes you into an extraordinary cave system featuring the world’s tallest stone pillar, standing an awe-inspiring 62.5 metres, as well as the dramatic Swallow Cave, known for its flowing underground rivers, sculpted limestone formations, and adrenaline-pumping waterfall jumps.

Unlike a typical trek, this journey is part exploration, part endurance challenge. You’ll float through cold subterranean rivers, climb slick rock formations, squeeze through narrow passages, and emerge soaked, muddy, and exhilarated — all while surrounded by pristine rainforest untouched by mass tourism.

This is not just a cave visit. It’s a true adventure for those seeking something raw, immersive, and unforgettable.

Trip Overview

  • Duration: 2 Days / 1 Night

  • Difficulty: ★★★☆☆ (3 / 5) - Challenging cave adventure requiring endurance and confidence in water

  • Activity style: Cave trekking, river floating, swimming, and scrambling

    • Swimming and floating in cold underground rivers
    • Waterfall jumps (4–5 meters)
    • Climbing and uneven, slippery terrain
    • Dark, enclosed cave environments

  • Accommodation: Camping & local camp stay

  • Season: March– April

  • Not recommended for:
    Elderly participants (60+), non-swimmers, or anyone uncomfortable with darkness, confined spaces, or cold water.

 

What Makes This Trek Special

  • Home to the world’s tallest stone pillar (62.5 m)

  • Underground rivers and dramatic limestone chambers

  • Flow stones sculpted by water over millions of years

  • Waterfall jumps inside cave systems

  • Remote rainforest setting within a protected national park

Adventure Style


This is a physically demanding cave adventure involving prolonged time in water, swimming with life vests, floating through underground rivers, and climbing over wet rocks. Participants must be comfortable being wet for several hours and moving through dark, enclosed spaces.

Food


Meals are prepared by our trekking team and include simple, hot, and energising dishes. Please advise dietary needs in advance.

Facilities

Facilities are basic and located at the national park accommodation area. There are no facilities inside the caves. Mobile signal is extremely limited or unavailable throughout the adventure.

Safety & Equipment


Life vests, lunch boxes, water, and first aid kits are provided by the team. Headlamps are required for Stone Pillar Cave and must be waterproof. Guides provide safety instructions before entering each cave, and all instructions must be followed at all times.

Physical Requirements

Participants should have good stamina, upper body strength, and confidence in water. Some sections require swimming against light currents or pulling yourself along cave walls to conserve energy.

Weather & Environment

Cave conditions remain cool year-round, with cold water temperatures. Rain can affect water levels and trail conditions; itineraries may be adjusted for safety if required.

Respect for Nature

These caves are part of a protected national park. Touching formations, leaving rubbish, or damaging the environment is strictly prohibited. All participants are expected to follow Leave No Trace principles.

  • Early morning departure and breakfast at the national park before preparing gear for the cave expedition.

    Travel by 4WD to the trailhead, followed by a rainforest hike to the Stone Pillar Cave. After lunch by the stream, enter the cave to swim and float through underground rivers and limestone chambers, culminating at the world’s tallest stone pillar (62.5 m).

    Optional 4–5 metre waterfall jump after exiting the cave, then hike back to the pickup point. Evening arrival at accommodation and dinner at the park canteen.

    Meals: Breakfast, Lunch, Dinner
    Overnight: National park accommodation

  • Breakfast before transferring to the Swallow Cave trailhead.

    Hike to the cave entrance, then explore a naturally lit cave system featuring underground rivers, narrow passages, and dramatic flow stone formations. The adventure concludes with a final waterfall jump and a short uphill hike to the pickup point.

    Return to accommodation for showers and lunch before departing for Bangkok in the afternoon.

    Meals: Breakfast, Lunch

Trip Itinerary