Doi Inthanon is one of the most popular national parks in Thailand, famous for its waterfalls, nature trails, remote villages, picturesque montain farms, viewpoints, watching the sunrise/sunset, birdwatching and the all year round cool weather. Also known as "The Roof of Thailand", Doi Inthanon National Park covers an area of 482 km² in Chiang Mai province north Thailand. The park is part of the Himalayan mountain range, elevation ranges between 800 and 2,565 meters with the highest peak at Doi Inthanon which is the highest mountain in Thailand. The park has high humidity and cold weather all year round. The average daily temperatures are normally around 10-12 °C at the higher elevations.
The park is named in honour of the king Inthawichayanon, one of the last kings of Chiang Mai, who was concerned about the forests in the north of Thailand and wanted to preserve it. After his death his remains was placed in the park as he ordered and the forest was renamed to Doi Inthanon. The flora consists of moist evergreen cloud forests, sphagnum bog on elevations over 1,800 metres, also, dry evergreen, pine, mixed deciduous teak and dipterocarp forests on the lower elevations.
Due to hunting and habitat change bigger mammals such as elephants, tigers, gaurs have been extirpated from the park decades ago. Some mammals such as wild boars, gibbons, deer and serows still inhabits the park. There are currently around 65 mammals in the national park, half of these bat species. Lucky visitors may see serows along the Kaew Mae Pan Nature Trail. The Center for Wildlife Research at Mahidol University has recorded total of 362 bird species in the park which makes it in numbers the second highest in Thailand after Kaeng Krachan National Park.

Source: Wikipedia