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Cassiobury Park LNR

Discover, in a corner of Cassiobury Park, a wildlife haven close to the heart of a bustling town.

The wet habitats found on the reserve were once shallow watercress beds, fed with water from the river through a series of ditches. These have developed into marshland and open pools, surrounded by wet woodland of alder and willow. This provides valuable cover and nesting sites for birds. There are also areas of grassland where birds such as goldfinches and greenfinches feed on the seed heads of thistles and teasels. Water rail, lesser spotted woodpeckers and siskins are typical birds here.


If you are interested in volunteering at this site please click here to see if there are any volunteering opportunities coming up in the future.

Nearby nature reserves

Stocker's Lake
3 miles - Herts and Middlesex Wildlife Trust
Hilfield Park Reservoir
4 miles - Herts and Middlesex Wildlife Trust
Longspring Wood
4 miles - Herts and Middlesex Wildlife Trust

Nature reserve map

Reserve information

On the A412 Watford to Rickmansworth road
WD18 7LG
Map reference
TQ 089 972
Great for...
a family day out
Best time to visit
Apr - Aug
Get directions
Find out here
Public transport
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Opening Times
Open at all times
24.60 hectares
Local Nature Reserve (LNR)
Access to the reserve is open at all times. Smooth surfaced flat paths all round, although canal side paths are prone to flooding.
Walking information
Good walking shoes are recommended. 30 minute walk from town centre. Nearby: Grand Union Canal towpath; Ebury Way (National Cycle Network Route 6/61)
Large car park at the end of Gade Avenue, just inside the park gates.
Dogs allowed
Reserve manager
Herts & Middlesex Wildlife Trust
Tel: 01727 858901