The best known, because of its easy accessibility to Bangkok, is Khao Yai, which covers more than 2,000 square kilometers of forest, grassland, and rolling hills in four provinces and provides shelter for some 200 species of I wildlife, including elephants, tigers, deer, and a wide selection of birds. The great Mekong River that forms the border between Thailand and Laos is another notable scenic attraction. One of the northeast's greatest assets is its hospitable people, who make visitors feel welcome at several memorable festivals during the year. The Elephant Roundup, held every November in Surin province, brings together nearly two hundred of the animals to take part in a display of their skills, with special trains bringing guests from Bangkok for the events. The beautiful Candle Festival, which marks the start of Buddhist Lent in July, attracts people from all over the country to Ubon Ratchathani, where huge, imaginative candles are paraded through the streets of the provincial capital.
Northeastern food reflects the influence of neighboring Laos in a number of dishes.
A popular regional dish of Lao origin is khanom buang, a thin crispy egg crepe stuffed with shrimp, bean sprouts, and other ingredients. Thanks to the large numbers of north-eastern who have come to work in Bangkok, food of the region is widely available in the capital. Khao Yaii National Park , northeast of Saraburi and some 200 kilometres from Bangkok, covers parts of four provinces at an average elevation of 800 metres. Khao Yai is some 540,000 acres in area, has a highest peak of 1,351 metres and contains within its rain forests and high grasslands numerous species of protected wildlife, such as deer, bears, tigers, elephants, giant hornbills, sunbirds and silver pheasants. The park is laced with hiking trails, and has 10 rapids and waterfalls.