Snowdonia (Eryri) · Things to do

Deep mine tours into the slate caverns above Blaenau, plus zip lines and underground trampolines in the old workings. Book ahead.

A UNESCO World Heritage Site since 2021, covering the quarries, inclines, railways and villages. The National Slate Museum at Llanberis is closed for redevelopment, so read it in the landscape instead.

A hanging valley off the Ogwen with a three-mile loop round the lake below Devil's Kitchen. Darwin worked on the glacial geology here.

One of Edward I's castles on a crag above the dunes, part of the same World Heritage listing as Conwy and Caernarfon. Cadw run it.

National Trust woodland and gorge below Beddgelert, with a riverside path along the old railway line through the pass.