Johnstone Strait is a well-protected shipping route passing 68 miles/110 km along the northeast shore of Vancouver Island between the island and the mainland of British Columbia. The strait is between 1 ½ miles and 3 miles wide, and leads from the broad Georgia Strait through a narrow channel called Discovery Passage. The strait was named by Vancouver in 1792 for James Johnstone, the master of one of his tenders during the survey expedition that revealed Vancouver Island to be an island. There are no cities or towns on the strait. The Johnstone Strait is the summer range of a large pod of seasonally resident orcas which are frequently seen in the area.
