Lilla Gastholmsgrund, located in Kanholmsfjärden.

Kanholmsfjärden is a major bay in the Stockholm archipelago. In October 2014, it was the location where the Swedish Armed Forces conducted a search for an alleged damaged foreign submarine.

59°20′N 18°47′E / 59.333°N 18.783°E / 59.333; 18.783

Allikas: https://en.wikipedia.org/wiki/Kanholmsfj%C3%A4rden
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