Saturday 5th September 2015, 12.40pm (day 1,472)
Rydal cave, on the slopes of Loughrigg Fell, is the biggest cave in the Lake District. As A. Wainwright says in his Pictorial Guide, “there is room in here for the entire population of Ambleside (though admittedly many of them would be standing in water)”. It’s not a natural cave however; instead, it is the product of quarrying. I guess you need a certain confidence in the local geology to dig out such a big hole…