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Broadwater Lake

A large lake in the Colne Valley which supports huge numbers of waterbirds.

Of the four lakes within the Mid Colne Valley SSSI, Broadwater Lake is by far the biggest and is one of the largest expanses of open water in the Colne Valley. The nature reserve includes Korda Lake, Long Pond, the River Colne and the western side of Broadwater Lake. The reserve is nationally important for its bird populations. Wintering birds include great crested grebe, cormorant, gadwall, shoveler, tufted duck, pochard, wigeon, teal, goldeneye, smew, ruddy duck and coot. 


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Nearby nature reserves

Dews Farm Sandpits
1 miles - London Wildlife Trust
Denham Lock Wood
1 miles - London Wildlife Trust
Frays Farm Meadows
2 miles - London Wildlife Trust

Nature reserve map

Reserve information

Off Moorhall Rd
South Harefield
Map reference
TQ 045 884
Great for...
overwintering birds
Best time to visit
Apr - Jul
Nov - Feb
Get directions
Find out here
Public transport
Plan your journey
Opening Times
Open at all times
19.40 hectares
Site of Special Scientific Interest (SSSI)
Living Landscape schemes
Colne Valley Living Landscape
Open at all times. Can be very wet after rainfall; watch out for vehicle ruts on the access track.
Walking information
Nearby: Grand Union Canal towpath; Colne Valley Trail
No parking at this reserve but cars can be left road near reserve entrance near bridge over River Colne.
Dogs allowed
Reserve manager
Herts & Middlesex Wildlife Trust
Tel: 01727 858901