Craig yr Aderyn, Rocky summit in Gwynedd, Wales
Craig yr Aderyn is a rocky hill in the Dysynni Valley in Gwynedd, Wales, with two distinct peaks and sheer cliff faces on one side. The site is both a scheduled monument and a Site of Special Scientific Interest, covering the summit and its exposed rock outcrops.
The hill was fortified during the Iron Age, with the remains showing that the defenses were built and then reworked at a later point. The site has been protected as a scheduled monument because of these earthworks, which are still partly visible on the ground.
In Welsh, the two peaks are called Y Palis Mawr and Y Palis Bach, meaning the large and small fortification. These names, still in everyday use, show how local speakers wove the shape of the land into their language.
Access to the summit is restricted between April and July to protect nesting birds, so it is worth checking conditions before you go. Outside that period, the terrain is steep and rocky in places, so sturdy footwear is a good idea.
Craig yr Aderyn translates from Welsh as Bird Rock, a name tied to the colony of cormorants that nest on the cliffs. What makes this unusual is that the sea is roughly 5 miles (8 km) away, making this one of very few inland cormorant nesting sites in Britain.
The community of curious travelers
AroundUs brings together thousands of curated places, local tips, and hidden gems, enriched daily by 60,000 contributors worldwide.
