This limestone gorge in Somerset is a designated Site of Special Scientific Interest and is managed as a National Nature Reserve because of its important flower, butterfly and bat species.
The site encompasses mixed woodland, rocks, caves and grassland with streams for visitors to paddle in. Many remnants of both human and animal habitation dating back to Neolithic times have been found here.
There are three marked walking trails, the shortest of which is suitable for wheelchair users; while the longest is 3 km (1.9 mi). There are impressive views across the Somerset Levels to Glastonbury Tor and beyond. The area can get muddy in wet weather, so come prepared.