Northern Bornholm is full of footpaths. Some are marked with painted coloured circles and symbols on red signposts. On Hammerknuden we suggest either the 6 km hike around Hammerknuden or Stenhuggerstien (The Stonecutter's Path). Both paths are marked with painted circles and both hikes can start at either Hammerhavn, Opalsøen og Sandlinien at Sandvig. These two paths both have steep and rocky sections that can be hard to walk.
From Hammershus to Allinge you can follow Cirkelstien (The Circle Path). This path leads past the petroglyphs at Madsebakke and Hammersholm and is an easy walk.
Two other options is the marked path from Hammershus to Moseløkke and Ankermyr and the path around Slotslyngen. Both of these also have hard sections.