North Sentinel Island, one of the Andaman Islands in the Indian Ocean, is forbidden to visit because it is inhabited by a hostile Sentinelese tribe. This tribe resists all contact with outsiders and aggressively attacks anyone who dares to come near their island. However, visiting this place may not only be dangerous for the curious travelers. Islanders are not immune to modern diseases, so contact with outsiders could tragically wipe out the whole Sentinelese tribe.
The Indian government was eager to make a contact with the tribe. The first and probably the only friendly contact was established in 1991 by scholar T.N. Pandit who arrived at the island bearing coconuts and other gifts in hopes to win the tribe’s trust. For the first time, islanders greeted visitors without bows.
However, soon after this expedition, officials decided to stop all other missions. They concluded that the tribe is healthy and thriving without any intervention of modern civilization. (Source)
Source : https://voltereto.tumblr.com/post/173555820176