Hammershus and Hammerknuden
Hammerknuden, the northernmost tip of Bornholm, is home to the island’s most dramatic cliffs and some stunning coastal walks and also to northern Europe’s biggest fortress ruin, Hammershus. The medieval fortress is perched atop a windy cliff with views of the Baltic Sea, and it’s the perfect crowning of a walk around the coast. Close to the ruin you’ll find Opalsøen, a jade-green lake in a former granite quarry. It’s popular for swimming, and the brave try the 8-meter (26-foot) cliffside jump. Scale the steep hill behind the lake to access a heath-clad area where sheep graze between lighthouses. The top of the island offers stunning views of Hammershus and a beautiful walk around the tip of Bornholm and back into charming Sandvig.
