Pine Island is an island of Northern Ontario, Canada, in the northwestern portion of Lake Huron, near the mouth of the St. Marys River, which connects Lake Huron with Lake Superior. It has a mix of year-round and seasonal (cottage) residents. Some of them live near the island; and some of those neighbors live on other smaller islands nearby. During the night, a nearby lighthouse blinks with an interval of approximately 3 seconds. The lighthouse is located on Matthew's Island, used seasonally by the Matthew's family. This island is geographically close to St.