https://www.google.co.uk/maps/@51.8140062,-3.5792599,3a,84.9y,237.97h,77.7t/data=!3m6!1e1!3m4!1sZ0H47vn0_aVqQ74SNe1gOg!2e0!7i13312!8i6656
That up by Little Neath river cave. I think there are a group of kids in Burrington Coombe as well. There are more, a lot of the roads near caves seem to have...