Penlee Battery is a nature reserve lying on the coastal headland of Penlee Point on the Rame Peninsula, in southeast Cornwall, United Kingdom.
The site was formerly a fort, constructed from about 1890. It contained the largest gun of the Plymouth defences, a 13.5 inch BL and was in active service through both World Wars[1]. Some gun emplacements still remain.
It is famous among dragonfly enthusiasts as the site where Britain's first Green Darner dragonfly was found, in 1998.[2][3]