Chiang Rai to Mae Rim Road Trip Guide: Scenic Route

The drive from Chiang Rai to Mae Rim follows Route 118 south, then joins Route 107 near Wiang Pa Pao, a corridor that has carried traders for centuries. This is not a straight highway but a winding path through the Phi Pan Nam Range, where fog often settles in the valleys by dawn.

Route 118 is a two-lane road that climbs from 390 meters at Chiang Rai to over 900 meters at certain passes, before descending into the Ping River basin near Mae Rim. The entire journey covers approximately 200 kilometers and, under normal conditions, takes about three hours by car. The initial section out of Chiang Rai passes the Mae Fah Luang University, a landmark that locals use for directions.

Data from the Thai Department of Highways indicates that Route 118 was improved in 2018, with added passing lanes on steeper grades, but it remains a challenging drive for those unfamiliar with mountain roads. For a broader perspective on planning stops, read how to find the best stops and hidden gems between cities.

Fuel stations are sparse between Chiang Rai and Wiang Pa Pao, so it's wise to fill up before departing. The first major petrol stop is at the PTT station in Mae Suai, 50 kilometers from Chiang Rai, which also has a minimart and restrooms. Diesel prices in Thailand are government-subsidized; as of 2025, you can expect to pay around 33 THB per liter.

Road quality varies: the first 30 kilometers from Chiang Rai are smooth and newly paved, but the section from Ban Huai Krai to Wiang Pa Pao has potholes and uneven shoulders. Winter fog reduces visibility to 50 meters in some stretches between November and February, so use low beams and drive with caution. The Doi Nang Non mountain pass, located just after Wiang Pa Pao, is a notorious spot for landslides during the rainy season (May-October).

• Route 107 is a major artery and generally well-maintained, with rest areas every 20-30 kilometers.
• At Chiang Dao, the road widens to four lanes, but speed limits drop to 80 km/h in built-up areas.
• Cell phone signal is unreliable in the mountains; offline maps are essential.

The route passes several small towns that offer basic services: Wang Nua, with its bustling morning market, and Phrao, known for its hot springs. For families, the clean restroom at the Chiang Dao Wildlife Sanctuary checkpoint is a reliable stop. Pet owners should note that most gas stations and rest areas allow dogs on leashes, but the temple grounds you'll pass do not.

Driving this route requires alertness, especially on the winding sections. The two-lane road has sharp curves and trucks that travel slowly, so overtaking is a risk. The use of headlights during the day increases visibility and is recommended. There are no major police checkpoints, but speed cameras are common near towns.

For families, the highlight is the Chiang Dao Cave, a limestone cavern with Buddha images and stalactites, located a kilometer from the highway. The cave has a well-maintained walkway and is suitable for children over six. Nearby, the Chiang Dao Elephant Sanctuary offers ethical feeding sessions, but booking in advance is essential.

• The Doi Suthep-Pui National Park, though closer to Chiang Mai, is not in Mae Rim but a common extension for those who continue south.
• Rest stops: PTT gas stations at Mae Suai and Wang Nua have clean toilets and shade.
• At km 87, there is a viewpoint overlooking the Fang Valley, perfect for a short break.

Fatigue management is crucial; the journey includes many curves that can cause motion sickness. Plan a break every 90 minutes. The town of Chiang Dao has several coffee shops, such as Mae Doi Coffee, that offer a safe parking area and a garden setting. For pet owners, the Phrao Hot Spring Resort allows dogs in the outdoor seating area, but check for seasonal restrictions.

One hidden gem is the Baan Tong Luang village, an eco-cultural village near Mae Rim that showcases traditional hill tribe lifestyles. It is off the main road, accessible via a dirt track that is passable in the dry season. The village charges a modest entrance fee and provides guides who share insights into the Akha and Karen cultures.

In conclusion, driving from Chiang Rai to Mae Rim is a rewarding experience for those who enjoy mountain scenery and local culture. The route is best taken at a leisurely pace, with stops to appreciate the natural beauty and cultural heritage.

The Phi Pan Nam Range is a geological wonder, composed of granite and limestone, with sharp peaks and deep valleys. The landscape transitions from pineapple plantations near Chiang Rai to teak forests around Wiang Pa Pao, and finally to vegetable terraces as you approach Mae Rim. The area is home to several hill tribe villages, including Hmong and Akha communities, where you can buy handwoven textiles at roadside stalls.

The only UNESCO World Heritage Site near this route is not on the direct path but worth a detour: the ancient city of Wiang Kum Kam, located 20 kilometers east of Chiang Rai. This 13th-century settlement was buried by a flood and rediscovered in the 1980s; its restored chedis and Buddha images offer a glimpse into the Lanna Kingdom. However, Wiang Kum Kam is not a full-day excursion, so plan accordingly.

• Hot springs at Phrao, with public pools and picnic areas, are a popular stop to stretch your legs.
• The Doi Ang Khang mountain, accessible from a turn-off near Fang, is a former royal project that now grows temperate fruits and flowers.
• In Mae Rim, the Mae Sa Valley is known for its orchid farms and butterfly gardens.

Local food stalls in Ban Thi (just south of Chiang Dao) serve khao soi, a Lanna curry noodle soup, for around 50 THB. For a sit-down meal, the Phrao Hot Spring Resort has a restaurant with a menu of northern Thai specialties. The route also passes through several fruit orchards where you can pick fresh lychees in season (June-July).