Karlsøya (Østfold)

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Karlsøya is an island in the municipality of Sarpsborg, in Østfold county, Norway. Before 1992, Karlsøya was a part of Skjeberg municipality. The island's only connection with the mainland is a bridge that connects the island with the peninsula of Ullerøy.

Adapted from Wikipedia (CC BY-SA). Photography via Wikimedia Commons.