In 2014, an aerial expedition followed by a circumnavigation investigated the effects of a forest fire. Important data was gathered and the expedition recorded that the fire did not seem to have affected the populace. They exhibited a balance of ages and sexes, with a number of young children. Friendly hand gestures were noted but the visitors did not go very close to the island. The 2014 expedition also recorded that the Sentinelese had adapted to the changes to their fishing grounds, and were using their canoes to travel up to half a kilometre (a third of a mile) from the shore.