Eastern Passage in Amet Sound is a narrow tidal channel that separates the mainland near Cape John from the low-lying islands and shoals that fringe the entrance of the sound. Situated on the north shore of Nova Scotia, this passage forms part of the intricate coastal geography of Pictou County, where Amet Sound opens into the Northumberland Strait. The channel has long been recognized on nautical charts as a useful but sometimes challenging route, as shifting sands and reefs define its margins.