Si Nan National Park covers approximately 583,750 rai, or 934 square kilometers, spanning several districts in Nan Province, including Wiang Sa, Na Noi, and Na Muen. The park’s mountains run north to south, with Doi Kham as the highest peak. It serves as a major source of the Nan River and offers diverse natural features, including both deciduous and evergreen forests. Important wildlife includes green peafowls, reptiles, and amphibians found near natural water sources.

The park’s main attractions include:

• Doi Samer Dao: A wide plateau on the ridge ideal for relaxation. This is a prime spot to view misty mornings, sunrises, and sunsets, with panoramic views of the Nan River, Pha Chu, park headquarters, and accommodations. Nature trails are also available.

• Pha Chu: A striking large rock cliff surrounded by lush mountains, offering views of the Nan River floodplain and a beautiful misty viewpoint.

• Pha Hua Singh: A rock formation resembling a reclining lion when viewed from Doi Samer Dao. The head area serves as a 360-degree viewpoint, perfect for sunrises, sunsets, and misty landscapes.

• Tiger’s Pen (Khok Suea): A natural pit resembling an earthen column, approximately 7 meters deep.

• Kaeng Luang: A rocky area with scattered boulders. During the rainy season, water flows loudly over the rocks, while in the dry season the rock formations and white sandy banks are clearly visible and picturesque.

• Pak Nai: Formed by the flooded forest above Sirikit Dam, this is the largest freshwater area in Nan. Visitors can enjoy scenic boat rides, and floating houses offer overnight accommodation.

• From Nan city, take Route 101 to Na Noi district, then enter the park.

• Parking and hiking trails are available.

• During peak season, shuttle services operate on some routes.

• Best visiting season: November – February, when misty mornings are most impressive.

• Wear comfortable, non-slip shoes.

• Bring a camera or smartphone for photography.

• Carry water and snacks, or purchase within the park.

• Plan your trip in advance as some trails have no shops or services.

Admission Fee:

• Local visitors: Adult 40 THB, Child 20 THB

• Foreign visitors: Adult 200 THB, Child 100 THB

• (Updated 2025 by the Department of National Parks, Wildlife and Plant Conservation, Thailand)

Opening Hours:

• Daily 06:00 – 18:00

• Recommended to visit viewpoints 05:30 – 07:30 for sunrise