Andaman and Nicobar Islands, union territory, India, consisting of two groups of islands at the southeastern edge of the Bay of Bengal. The peaks of a submerged mountain range, the Andaman Islands and their neighbors to the south, the Nicobar Islands, form an arc stretching southward for some 620 miles (1,000 km) between Myanmar (Burma) and the island of Sumatra, Indonesia.

Tourism is a growing industry in the Andaman and Nicobar Islands, with dozens of hotels scattered throughout the territory. Most tourists are from the Indian mainland. Popular historical attractions include remnants of the British colonial administration, such as the Andaman Cellular Jail (completed in 1906), in Port Blair, where the Indian revolutionary Vinayak Damodar (Vir) Savarkar was detained in the first half of the 20th century. The natural environment of the territory, with its many parks, gardens, and sanctuaries, is attractive to ecotourists and trekkers.