Folly Brook is a 2+1⁄4-mile (3.6 km) long brook in the London Borough of Barnet. It is a tributary of Dollis Brook, which is a tributary of the River Brent, which is a tributary of the River Thames. Folly Brook is lined for most of its length by narrow strips of woodland and scrub, with a good variety of trees and shrubs. It is one of the best streams in Barnet for small aquatic invertebrates, including several species of caddis fly and a stonefly, which are only found in unpolluted waters.
Edgwarebury Park is a 22-hectare park in Edgware in the London Borough of Barnet. It was once part of the manor of Earlsbury, which was first mentioned in 1216. In the later Middle Ages it was owned by All Souls College, Oxford, and there is still evidence of the older landscape of fields and woodland. Hendon Rural District and Middlesex County Council bought the land in two parts in 1929 and 1932, and the park opened in the latter year. It is now owned and managed by Barnet Council.
Cherry Tree Wood is a 5.3-hectare park in East Finchley in the London Borough of Barnet. It is a Site of Local Importance for Nature Conservation. Located opposite East Finchley Underground station, it contains woodland and grassland, a playground, tennis courts, a cafe and toilets.
Woodridge Nature Reserve or Woodridge School Nature Reserve is a 0.7-hectare (1.7-acre) Site of Local Importance for Nature Conservation in Woodside Park, London, owned and managed by the London Borough of Barnet. It was designed as a nature trail for local primary schools, but is now very neglected.
Burtonhole Lane and Pasture is a 6.5-hectare (16-acre) Site of Borough Importance for Nature Conservation, Grade II, between Mill Hill and Totteridge in the London Borough of Barnet. It consists of Burtonhole Lane between Partingdale Lane and Burtonhole Close, a footpath east from Burtonhole Lane towards Folly Brook, two fields south of the footpath, and a narrow belt of privately owned woodland north of the footpath. Burtonhole Brook, a tributary of Folly Brook, crosses Burtonhole Lane and the fields.
Scratchwood is an extensive, mainly wooded, country park in Mill Hill in the London Borough of Barnet. The 57-hectare site is a Site of Metropolitan Importance for Nature Conservation and together with the neighbouring Moat Mount Open Space. It is a Local Nature Reserve.
Coppetts Wood and Scrublands is a 14.5-hectare (36-acre) Site of Borough Importance for Nature Conservation, Grade I, between Muswell Hill and Friern Barnet in the London Borough of Barnet. It is part of the Coppetts Wood and Glebelands Local Nature Reserve.
Oak Hill Wood is a 10-hectare Local Nature Reserve (LNR) and a Site of Borough Importance for Nature Conservation Grade I, in East Barnet, London. It is owned by the London Borough of Barnet, and part of it is a 5.5-hectare nature reserve managed by the London Wildlife Trust.
Ashley Lane is a one hectare Site of Borough Importance for Nature Conservation, Grade II, in Hendon in the London Borough of Barnet. It is over 400 years old, and was an important medieval road. Cardinal Wolsey travelled along it on his final journey to York in 1530. It is now a bridleway which runs between Hendon Golf Course and Hendon Cemetery.
Totteridge Green is a five hectare Site of Borough Importance for Nature Conservation, Grade II, in Totteridge in the London Borough of Barnet. It is also registered common land.
Stoneyfields Park is a three-hectare public park in The Hale in the London Borough of Barnet.
Mutton Brook is a stream which runs between East Finchley and Hendon in the London Borough of Barnet. It is a tributary of the River Brent, which is itself a tributary of the River Thames.
Friary Park is a nine hectare formal Edwardian park in Friern Barnet in the London Borough of Barnet.
The Mill Field is a 3.4-hectare (8.4-acre) Site of Borough Importance for Nature Conservation, Grade II, in Mill Hill in the London Borough of Barnet. It is a public open space which slopes steeply down from the road called The Ridgeway. It may be the site of the windmill which gave the area its name. This was documented as early as 1321 and had disappeared by 1754.
Brent Park is a small public park of 2.24 hectares in Hendon in the London Borough of Barnet. It is part of the 'Lower Dollis Brook' Site of Borough Importance for Nature Conservation, Grade II.
Burnt Oak Brook is a one-mile-long stream between Mill Hill and Burnt Oak in the London Borough of Barnet. It is a tributary of the Silk Stream, which is a tributary of the River Brent, which is a tributary of the River Thames.
Big Wood and Little Wood are two patches of woodland in Hampstead Garden Suburb in the London Borough of Barnet. They are a Site of Borough Importance for Nature Conservation, Grade 1, and a Local Nature Reserve. Big Wood is 7.3 hectares and Little Wood is 1.2 hectares.
The Northern line Embankment between Totteridge and Whetstone and High Barnet tube stations on the Northern line is a Site of Borough Importance for Nature Conservation, Grade II, in the London Borough of Barnet.
Edgwarebury Brook is a small stream in Edgware in the London Borough of Barnet. It is a tributary of Deans Brook, which is a tributary of the Silk Stream, which is a tributary of the River Brent, which is tributary of the River Thames.
Dulwich Upper Wood is a 2.4 hectare local nature reserve and Site of Borough Importance for Nature Conservation, Grade 1, in Crystal Palace in the London Borough of Southwark. It is owned by Southwark Council and managed by the Trust for Urban Ecology.
