A guidebook to 40 mountain walks exploring Eryri (Snowdonia), Wales. Graded by difficulty, the routes cover the whole of the national park and range from easy to strenuous, with the majority falling into the 'moderate' and 'strenuous' categories. Four routes call for low-grade scrambling.

Included are 38 walks of between 5 and 20km (3–13 miles), which can be enjoyed in 2–7 hours, plus a challenging two-day traverse of 'the Welsh 3000s' – the 15 Welsh summits over 3000ft.