Broadwater Lake Nature Reserve

© Tim Hill

**Please note that HS2 contractors are on site. Broadwater Lake Nature Reserve remains open, but the works may cause a disturbance. However, we don't believe that bird-viewing across Broadwater Lake will be affected due to the location of the works.**


Off Moorhall Rd

OS Map Reference

TQ 045 884
A static map of Broadwater Lake

Know before you go

19 hectares

Entry fee


Parking information

There is no parking on site, the closest street parking is Link Way, Denham Green (0.3 miles to reserve).

Walking trails

Nearby: Grand Union Canal towpath; Colne Valley Trail


Rutted and muddy tracks.


On a lead


Bird hides

When to visit

Opening times

Open at all times

Best time to visit

April to July, November to February

About the reserve

A large lake in the Colne Valley which supports huge numbers of waterbirds. A nationally important lake in the Colne Valley which supports huge numbers of waterbirds. Of the four lakes within the Mid Colne Valley Site of Special Scientific Interest, 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. Wintering birds include great crested grebe, cormorant, gadwall, shoveler, tufted duck, pochard, wigeon, teal, goldeneye, smew and coot.

Seasonal Highlights
Cetti’s warbler, house martin, sand martin, swallow.
Summer: Broad bodied chaser, Daubenton’s bat, emperor dragonfly.
Autumn: Chiffchaff, hobby, redwing, pochard, tufted duck.
Winter: Goldeneye, goosander, smew.

Environmental designation

Site of Special Scientific Interest (SSSI)


Site entrance: The site entrance is located on Moorhall Road. Approaching from Link Way, turn left onto Moorfield Road (turns into Moorhall Road), the reserve will be on your left just after you cross the river.

Access by road: From A412 in Denham Green, turn into Moorfield Road. Turn left and park on Link Way.

Access by public transport
Bus: 331 – Moorfield Road (300m)
Rail: Denham (0.5 miles).

Follow us on social media

Support our nature reserves

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