Tham Kaeo Komon Forest Park – Explore Mae Hong Son’s Hidden Crystal Cave

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Explore Tham Kaeo Komon Forest Park in Mae Hong Son, home to one of the world’s rare calcite crystal caves with stunning natural formations.

Hidden within the serene hills of northern Thailand lies Tham Kaeo Komon Forest Park, a geological treasure and one of the rarest natural wonders in the world. This fascinating site in Mae La Noi District is famous for its calcite crystal cave — the only one of its kind in Thailand and one of just three globally. Its shimmering crystal formations make it a must-see for travelers seeking both beauty and scientific intrigue.

Geological Marvel and History

The cave was first discovered in 1993 during a fluorite mining survey. In 1996, the Royal Forest Department declared it a Forest Park, and in 2000, Her Majesty Queen Sirikit bestowed its official name. Within, visitors find five chambers, each distinct in design, showcasing crystal drapes, stalactites, and snowflake-like calcite formations. This rare environment places it among the most unique Attractions in Mae Lanoi.

Unique Experience Inside the Cave

Exploring the chambers feels like stepping into an underground palace. Each room has a name that reflects its beauty — from “Pra Taitarn” with waterfall-like stone patterns to “Predpraew Manee Buppha,” the deepest and most stunning chamber covered in pure white crystals. The atmosphere is cool, hushed, and otherworldly, a peaceful contrast to the lush forests outside in Mae Hong Son.

Must-Do Activities

Cave Exploration Tour: Follow guided routes through five crystalline chambers. The 120-meter route takes around 20 minutes per round.
Nature Walk: Stroll the forest park surroundings, taking in mountain views and fresh air.
Photography Outside the Cave: While photography is prohibited inside, the exterior and forest landscapes are perfect for memorable shots.

Facilities, Best Time & Tips

The park provides secure pathways, concrete stairs, and lighting inside the Kaeo komon cave. Rest areas and refreshments are available near the entrance. The best time to visit is between November and February when the weather is cool. Remember: no touching the cave walls, no photography inside, and entry is limited to 20 visitors per round to preserve this wonder. If you plan an extended stay, look into Mae Hong Son Tour Packages for a richer regional experience.

How to Get There

From Mae Sariang or Chiang Mai, take Highway 108 towards Mae La Noi. Turn at the signpost for Tham Kaeo Komon Forest Park and continue 5 km to the ticket office. A local pickup truck will transport visitors to the cave entrance, included in the ticket price.

Nearby Attractions

Salawin National Park

A vast protected area straddling the Thai–Myanmar border, Salawin National Park offers pristine forest landscapes, river views, and remote ethnic villages. Ideal for trekking and nature lovers.