Oak Island is a privately owned island in Lunenburg County on the south shore of Nova Scotia, Canada. The tree-covered island is one of several islands in Mahone Bay, and is connected to the mainland by a causeway. The nearest community is the rural community of Western Shore which faces the island, while the nearest village is Chester. . The island is best known for various theories about buried treasure or historical artifacts, and the associated attempts to explore the site.
https://en.wikipedia.org/wiki/Oak_Island