Isegran

Fredrikstad Museum has another section on Isegran, an islet across the Glomma. Norse sagas mention the 13th-century fortress of Isegran, which later became a further line of defence against Sweden in the mid-17th century. The ruins of a stone (originally wood) tower remain visible at the eastern end of the island. It’s also the site of a small museum on local boatbuilding (from the time when boats were lovingly handcrafted from wood). Boats run between Isegran and Gamlebyen or the modern centre (Nkr6). By road or on foot, access is from Rv108, about 600m south of Fredrikstad city centre.