Cassiobury Park is the principal public park in Watford, Hertfordshire, in England. It was created in 1909 from the purchase by Watford Borough Council of part of the estate of the Earls of Essex around Cassiobury House which was subsequently demolished in 1927. It comprises over 190 acres (0.77 km2) and extends from the A412 Rickmansworth Road in the east to the Grand Union Canal in the west, and lies to the south of the Watford suburb of Cassiobury, which was also created from the estate. The western part is a 25.1 hectare Local Nature Reserve managed by the Herts and Middlesex Wildlife Trust. The park hosts the free, weekly timed parkrun 5km event every Saturday morning at 9am, starting at the Rickmansworth Road entrance to the park.
Rowhill Nature Reserve or Rowhill Copse is a 26.6-hectare (66-acre) Local Nature Reserve (LNR) which straddles the border between Aldershot in Hampshire and Farnham in Surrey. It is owned by Rushmoor Borough Council, was declared an LNR by Waverley Borough Council and is managed by Rowhill Nature Reserve Society.
Rowley Green Common is a six hectare Local Nature Reserve and a Site of Importance Metropolitan for Nature Conservation in Arkley, north London. It is owned by the London Borough of Barnet and according to the Natural England details page it is jointly managed by the Hertfordshire and Middlesex Wildlife Trust and the London Wildlife Trust, but as of August 2015 it is not on the list of reserves of either Trust. It is also registered common land.
Glebelands is Site of Borough Importance for Nature Conservation, Grade I, in Colney Hatch in the London Borough of Barnet. It is also part of the Coppett's Wood and Glebelands Local Nature Reserve.
Cuddington Meadows is a 1.4 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade I, in Belmont in the London Borough of Sutton. It is owned by Sutton Council and managed by the council together with Sutton Nature Conservation Volunteers.
Myrna Close is a linear walk along the line of a former railway line in Colliers Wood in the London Borough of Merton. It is a 0.75 hectare Local Nature Reserve and a Site of Borough Importance for Nature Conservation, Grade II, which is owned and managed by Merton Council.
Castle Hill is a 3.5 hectare Scheduled Ancient Monument, Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade 1, in Chessington in the Royal Borough of Kingston upon Thames, London. It is owned by Merton College, Oxford, and leased to Kingston Council. The site is managed by the Lower Mole Countryside Management Project.
Lonsdale Road Reservoir is a disused reservoir in Barnes in the London Borough of Richmond upon Thames. It is an 8.2 hectare local nature reserve and Site of Borough Importance for Nature Conservation, Grade 1, owned and managed by Richmond upon Thames London Borough Council.
Long Wood is a 1.2 hectare Local Nature Reserve and Site of Borough Importance for Nature Conservation, Grade 1, in Norwood Green in the London Borough of Ealing. It is owned and managed by Ealing Council.
Northaw Great Wood is a 223.6 hectare biological Site of Special Scientific Interest (SSSI) near Cuffley in Hertfordshire, England. It covers Northaw Great Wood Country Park, which is managed by Welwyn Hatfield Borough Council, Well Wood, Justice Hill and Grimes Bottom. Part of the site is managed by Hertfordshire County Council as a schools' park. The country park is also a local nature reserve.
Mardley Heath is a 41.1 hectare Local Nature Reserve in Welwyn in Hertfordshire. It is owned by Welwyn Hatfield Borough Council and managed by the council together with the Friends of Mardley Heath.
Howe Dell is a 4 hectare Local Nature Reserve in Hatfield in Hertfordshire. The declaring authority is Welwyn Hatfield Borough Council. The site is woodland which runs along both sides of a stream with steep sides. The main trees are hornbeam, oak and beech. There is access from Honeysuckle Gardens.
Stanborough Reedmarsh is a 3.3 hectare Local Nature Reserve in Welwyn Garden City in Hertfordshire. It is owned by Welwyn Hatfield Borough Council and managed by the Herts and Middlesex Wildlife Trust.
Shrubhill Common is a 9.8 hectare Local Nature Reserve in Hemel Hempstead in Hertfordshire. It is owned and managed by Dacorum Borough Council. The site is common land, and it is part of the Chilterns Area of Outstanding Natural Beauty.
Garston Park is a park in Garston, Hertfordshire, a suburb of Watford in Hertfordshire. An area of 6.4 hectares, about half of the park, is a Local Nature Reserve. It is owned and managed by Watford Borough Council.
Albans Wood is a 4.1 hectares local nature reserve in Watford in Hertfordshire. It is owned and managed by Watford Borough Council.
Harebreaks Wood is 5.1 hectare Local Nature Reserve in Watford in Hertfordshire. It is owned by Watford Borough Council and managed by the council and the Friends of Harebreaks Wood.
Ockwells Park is a park, part of which is a local nature reserve, in Cox Green, Berkshire, England. The nature reserve is owned by the Royal Borough of Windsor and Maidenhead.
White Rose Lane is a 3.4-hectare (8.4-acre) Local Nature Reserve in Woking in Surrey. It is owned and managed by Woking Borough Council.
