Open Space
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Hadley Green
Nature Reserve / Woodland
The grassland and wetlands of this green support many plants and insects.
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Hainault Forest Country Park
Large Park
Fox Burrow Rd, Chigwell, Essex, IG7 4QN [map]
The park covers more than 300 acres, with a fishing lake, Zoo, guided walks, bridleways and the recently opened Nature Trail.
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Happy Valley & Farthing Downs
Large Park
Croydon, Surrey, [map]
An extensive area of grassland, ancient woodland and scrub on the chalky soil of the Downs, which supports a wide variety plants, birds, insects and animals.
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Harrow Weald Common
Large Park
A large common, with scattered areas of woodland and heathland and several ponds and lakes, providing good conditions for many different types of plant and insect.
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Havering Country Park
Local Park
RM4 1PH [map]
An old royal hunting park, comprising large areas of oak- hornbeam woodland with undisturbed grassland in an important historic landscape.
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Heath Hands
Large Park
West Lodge Kenwood, Hampstead Lane, NW3 7JN [map]
Heath Hands is a volunteer organisation created to help conserve the special character of Hampstead Heath and to give everyone who enjoys the Heath an opportunity to make a difference.
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Hewitts Chalk Bank
Nature Reserve / Woodland
Flower-rich chalk grassland on a steep-sided mound, excavated from the nearby railway.
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High Broom Wood
Nature Reserve / Woodland
Ancient woodland with a rich plant life, especially in damp areas along the River Beck, where a number of rare wetland plants can be found.
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High Elms Country Park
Garden
BR6 7JH [map]
A large complex of chalk grassland and ancient woodland, rich in plants and animals, containing an excellent diversity of orchids.
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Hilly Fields & Clay Hill Pasture
Large Park
EN2 9JB [map]
A Country Park with important woodland and grassland, and large open spaces for jogging, dog walking and other casual recreation.
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Holland Park Ecology Centre
Nature Reserve / Woodland
The Old Stable Yard, Holland Park, Ilchester Place, W8 6LU [map]
The Ecology Centre at Holland Park promotes awareness and understanding of biodiversity and the local environment through formal and informal education.
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Horsenden Hill
Nature Reserve / Woodland
A fine area of hilly countryside, containing grassland, ancient hedgerows and a small ancient wood.