On our recent trip to England we were delighted by several gardens that we visited. The 400 year old elephant hedge that we thought should be the heffalump hedge is at Rockingham Castle in Leicesterhire
Lancelot 'Capability' Brown designed this Haha in the 18th Century in the garden at Burghley House that was built in 1555-1587 by William Cecil, Lord High Treasurer to Queen Elizabeth I. The haha was a device to keep livestock out of the formal gardens while not blocking the view with a fence.
This Palladian county house, Stourhead, was completed in 1725 and design by Colen Campbell for Henry Hoare I. Henry Hoare II designed and built the pastoral garden full of follies in 1740. It was on the forefront of the English Landscape movement. If you are in Wiltshire please make the effort to visit this house and garden. It is worth the trip!
The grotto was on the edge of the lake.