I went in search of something natural and found something very much man-made.
Manns Cave appears to be another garden feature, a recess in the face of a small quarry which has had a roof added. At some point it looks like their were also wooden beams.
The Devils Chimney is a garden feature dating from about 1740, it overlooks the seven bridges walk.
It is said to be a representation of the Mausoleum of the Horatii and Curiatii near Rome.
The fishing tabernacles were probably one of the earliest parts of the garden, with the cascade into the lake being started around 1716
The pavilions are said to have been used as a base for fishing trips.