OVERVIEW / INTRODUCTION
AREA — 3.88km2, 398 hectar
HEIGHT — 373m, 1001m
In 1954, Cwm Idwal was designated as the first National Nature Reserve in Wales, and today it is a very popular attraction for a wide range of visitors.
The primary reason for designating Cwm Idwal as a National Nature Reserve was the unique geology found here. The second reason connects rare plants to the special geology.