Thailand's highest peak features a paved walkway through cloud forest to royal chedis. The summit is often cool and misty, making it a refreshing contrast to lowland heat. Includes boardwalk through unique cloud forest ecosystem.
Doi Inthanon National Park in Chiang Mai Province, northern Thailand, protects the country's highest peak at 2,565 meters, and the summit trail makes this elevation accessible to nearly all visitors via a short paved loop of approximately 500 meters. The trailhead begins at the main summit parking area, reached via the park's central road from the main gate approximately 48 kilometers south. From the car park, a combination of paved walkway and elevated boardwalk winds through a dense cloud forest ecosystem of mosses, lichens, ferns, and epiphytic orchids clinging to ancient tree trunks. The route passes the twin royal chedis—Naphamethinidon and Naphaphonphumisiri—gilded pagodas built in honor of King Bhumibol Adulyadej and Queen Sirikit, surrounded by manicured gardens maintained by the Royal Project Foundation. Beyond the chedis, the loop enters the cloud forest proper, where trees of substantial girth are wrapped in bryophytes and carpeted with ferns at their roots. The atmosphere is often cool and misty even in the dry season, with cloud banks rolling across the ridge throughout the day. Temperatures at the summit typically range from 8°C to 18°C in the cool season, and can drop below 5°C on winter nights. Visitors should carry a warm layer regardless of season. Over 380 bird species have been recorded in Doi Inthanon National Park, including rare high-altitude specialists near the summit such as the green-tailed sunbird and the Doi Inthanon subspecies of white-browed shortwing. A park entrance fee of approximately 300 THB for foreign adults applies. Restrooms and a small café operate near the summit parking area. The summit parking area can be reached by private car or chartered songthaew from Chiang Mai—no public bus serves the summit directly. The Ang Ka Nature Trail boardwalk, a separate 360-meter cloud forest loop, is located approximately 1 kilometer below the summit parking area and is worth combining into the same visit.
Trail facts
- Trail area
- Doi Inthanon National Park, Chiang Mai Province
- Best season
- November to February (cool dry season; clearest views and optimal birdwatching conditions)
Highlights
- Royal chedis with mountain views
- Cloud forest ecosystem
- Bird watching (over 380 species)
- Twin waterfalls nearby
Tips for visiting
- Bring a warm layer even in summer; summit temperatures can be 10–15°C cooler than Chiang Mai city below
- Arrive before 9 am on weekends to secure parking; the summit car park fills quickly from mid-morning
- The park entrance fee of approximately 300 THB covers both the summit area and the Ang Ka Nature Trail—combine both on the same visit
- Morning cloud typically clears between 8 and 10 am for the clearest views; afternoons often bring mist
- Longer lens binoculars improve bird spotting near the boardwalk; the summit area is one of the best birding sites in Thailand
When to visit
Early morning visits between 7 and 10 am offer the clearest skies and fewest crowds; the summit frequently becomes shrouded in mist by early afternoon. The cool season from November to February provides the most comfortable temperatures and the best chance of clear summit views.
Accessibility
The summit loop trail is paved and includes a boardwalk section with railings, making it one of Thailand's more accessible high-altitude walks. The route is largely flat with only minor inclines. Wheelchair users and visitors with strollers may find most of the loop manageable, though some narrower boardwalk sections and steps near the chedis present challenges. The trail is not officially certified as fully wheelchair accessible.
Frequently asked questions
How do I get to the Doi Inthanon summit from Chiang Mai?
The summit is approximately 100 kilometers from Chiang Mai city, reached by private car or chartered songthaew via Route 108 south to Mae Chaem then north into the park. No regular public bus serves the summit directly. The drive from the park gate to the summit parking area takes about 40 minutes.
Is there an entrance fee for Doi Inthanon National Park?
Yes. Foreign adults pay approximately 300 THB and Thai nationals pay 30 THB. A separate vehicle fee of around 30–50 THB applies. The fee covers access to the summit area and the Ang Ka Nature Trail.
What should I wear at the Doi Inthanon summit?
Temperatures at 2,565 meters can drop to single digits Celsius in the cool season (November–February) and are typically 10–15°C cooler than Chiang Mai city. A warm fleece or jacket, closed-toe shoes, and a windproof layer are advisable year-round.
What wildlife can be seen near the summit trail?
The summit area is one of Thailand's premier birdwatching sites, with species including green-tailed sunbird, Gould's sunbird, cutia, and various flycatchers unique to this altitude. Small mammals such as squirrels and tree shrews are also common near the boardwalk.