The largest island in a lake on an island in a lake is Treasure Island in Mindemoya Lake on Manitoulin Island in Lake Huron.[6] The largest island in a lake on an island in a lake on an island is a nameless, approximately 4.0-hectare (10-acre) island at 66°41′13″N 70°28′44″W﻿ / ﻿66.687°N 70.479°W﻿ / 66.687; -70.479, situated within Nettilling Lake on Baffin Island, Canada.