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Nynäs Castle & Nature Reserve

Between Nyköping and Trosa, Nynäs Castle is surrounded by Sörmland’s largest nature reserve with coastal trails and oak pastures.

8 November 2026 · Current

Built in the late 17th century, Nynäs Castle is one of Sweden’s best-preserved historic estates, complete with a landscaped park and 1907 Orangery.

The castle park and surrounding Nynäs Nature Reserve are open year-round with marked trails through ancient oak pastures down to the Baltic coast.