Mentioned by Finding the Universe
The Best Photography Locations in Edinburgh
"Down underneath Edinburgh Castle is the Princes Street Gardens, a large public park which runs parallel to Princes Street, divided into the East and West gardens by The Mound. The gardens are the former site of the “Nor Loch”, a defensive lake that sat here until the mid 18th century, and was usually very badly polluted by everything that dribbled out of the medieval city. Today, the landscaped gardens are a rather nicer environment, particularly popular in the summer as a place to relax and take in the views."