Ecotourism is now defined as "responsible travel to natural areas that conserves the environment, sustains the well-being of the local people, and involves interpretation and education" (TIES, 2015). Education is meant to be inclusive of both host and guests. Most tourism in natural areas nowadays is not ecotourism and is not, sustainable. Ecotourism is distinguished by its emphasis on conservation, education, traveler responsibility and active community participation. Additionally, ecotourism can provide a viable economic development alternative for local communities with few other income-generating options. Moreover, ecotourism can increase the level of education and activism among travelers, making them more enthusiastic and effective agents of conservation.
In northern Thailand trekking is the most popular. Trekking by the beauty of nature, Deep jungles, rivers and waterfalls. Hot springs are forested hills and terraced fields of rice dreamscapes for travelers. The North is also rich in cultural diversity with the villages of ethnic tribes, travelers can experience while trekking. Thailand also offers a number of national parks and national game reserves, where excursions can be arranged. Such as Pai and Chiang are May, the two destinations, where most of the trek will begin in northern Thailand. Many travel agencies trekking for a period of three days a week. Overnight stays in hill tribe villages remain in the home, in bamboo huts for the more organized. The meals are cooked by the guides who want to help travelers who want to learn to cook Thai cuisine with local ingredients.