Gander is located in the northeastern part of the island of Newfoundland, approximately 40 kilometres (25 mi) south of Gander Bay, 100 km (62 mi) south of Twillingate and 90 km (56 mi) east of Grand Falls-Windsor. Located on the northeastern shore of Gander Lake, it is the site of Gander International Airport, formerly an important refuelling point for transatlantic aircraft, and, to this day, a preferred stopping point for transatlantic aircraft that need to land because of on-board medical or security emergencies.