This Site of Special Scientific Interest contains important oak hornbeam woodland where broad-leaved helleborines and butterflies thrive


Off Cock Lane
EN11 8GG

OS Map Reference

TL 346 077
A static map of Danemead

Know before you go

6 hectares

Entry fee


Parking information

There is a council owned car park – Ermine Street ‘Martin’s Green’ car park – off of Cock Lane, Broxbourne.

Walking trails

Butterfly Trail/Sculpture Trail in Broxbourne Woods; River to Wood Trail (starts in Lee Valley Regional Park); Hertfordshire Way; Hertfordshire Chain Walk


The site is not suitable for wheelchairs or buggies due to uneven ground.


Under effective control
No dogs in enclosures. In other areas dogs are permitted under control.

When to visit

Opening times

Open at all times

Best time to visit

April to July

About the reserve

This reserve is surrounded by rich history – the site is bounded by the major Roman road, Ermine Street, and by the north end of Martin’s Green. The damp meadow at the centre of the site supports a rich variety of wildflowers, including valerian and agrimony, with devil’s-bit scabious found in the damp eastern section of the reserve. Butterflies are abundant in the
summer and include the white admiral.

Seasonal Highlights
   Common lizard, slow worm, wood anemone.
Summer: Broad-leaved helleborine, purple emperor.
Autumn/ Winter: Bracket fungi, hawfinch.

Environmental designation

Site of Special Scientific Interest (SSSI)


Site entrance: From ‘Martin’s Green’ car park off Cock Lane, walk down the track from the car park for 200 yards to the reserve entrance. There is also access to the site from Hoddesdon Park Wood along the Hertfordshire Way.

Access by road: From Hoddesdon head towards Broxbourne on A1170, turn right at Cock Lane roundabout and follow road for 1.5 miles. The reserve and car park is on the right.

Access by public transport
310, 341, 392, 410, 411, 641 to Hoddeston Clock Tower (2.3 miles).
Rail: Broxbourne (2.4 miles).

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It costs on average £30 per month to care for each acre of our nature reserves.