A Hardy is any one of a category of mountain, hill or high point in the United Kingdom, the Channel Islands and Isle of Man which is the highest point in either a hill range, an island over 1,000 acres (400 ha), or a top-tier administrative area.

Butser Hill is a hill and nature reserve in Hampshire, England. South-west of Petersfield, it is a 239.7-hectare (592-acre) biological and geological Site of Special Scientific Interest. It is a national nature reserve and a Special Area of Conservation. Part of it is a Geological Conservation Review site and an area of 84.8 hectares is Oxenbourne Down, which is designated a Local Nature Reserve. Part of it is a Scheduled Monument.