Thursley, Hankley and Frensham Commons

Thursley, Hankley and Frensham Commons is a 1,878.5 ha biological Site of Special Scientific Interest west of Godalming in Surrey. Thursley and Hankley Commons are Nature Conservation Review sites, Grade I. An area of 115.1 ha is a local nature reserve called The Flashes and an area of 180 ha is the Elstead Group of Commons, a nature reserve managed by the Surrey Wildlife Trust. Thursley Common is a national nature reserve. An area of 265.7 ha is the Thursley & Ockley Bogs Ramsar site. The site is a Special Protection Area and part of the Thursley, Ash, Pirbright & Chobham Special Area of Conservation.

This site is of national importance for its invertebrates, birds and reptiles. It is mainly heathland but the valley mire on Thursley Common is one of the best in the country. Orthoptera include the nationally rare large marsh grasshopper. The site is one of the richest in southern England for birds and of outstanding importance for reptiles, such as the nationally rare sand lizard.