Back to reserve map

Isleworth Ait

An undisturbed sanctuary for birds, beetles and rare molluscs in the middle of the River Thames.

An undisturbed sanctuary for birds, beetles and rare molluscs in the middle of the River Thames.

Take your binoculars – this unusual reserve is accessible by boat and by arrangement only, but it is clearly visible from the banks of the river.

This three and a half hectare island in the Thames is one of the London Wildlife Trust's more unusual reserves and is rarely visited by humans.

It is remarkable for its tall canopy of mixed woodland of mainly poplar and willow, rooted on an area of ground that is regularly flooded.

The island provides an undisturbed sanctuary for a variety of birds including treecreeper, kingfisher and heron.

Among its other important residents are several rare beetles and two rare species of mollusc, the two-lipped door snail and the German hairy snail.

To preserve the unique wildlife, access on to Isleworth Ait is not encouraged, however you can get excellent views of the island from Isleworth waterfront and the popular local pubs.

Habitats you'll see

Mixed woodland

Species you might spot

Two-lipped door snail and the German hairy snail; kingfisher, grey heron, song thrush, great crested grebegrey wagtail, house martin, swallow and swift 

If you spot these or any other species, please submit your wildlife sightings to Greenspace Information for Greater London (GiGL) to help build a picture of London's nature!

Visit us

Check us out from afar - access by boat for work and open days only.

Get involved

To find volunteering opportunities at Islesworth Ait, visit the west London volunteering page.

Site status

Site of Metropolitan Importance

 

Species and habitats

Habitats
Wetland, Woodland

Nearby nature reserves

Gunnersbury Triangle
3 miles - London Wildlife Trust
Crane Park Island
3 miles - London Wildlife Trust
Huckerby's Meadows
4 miles - London Wildlife Trust

Nature reserve map

Reserve information

Location
Isleworth
Hounslow
Greater London
TW7 6RW
Map reference
TQ167757
Great for...
birdwatching
Best time to visit
Apr - Jul
Get directions
Find out here
Public transport
Plan your journey
Opening Times
Not open at all times, by appointment only - contact the Trust for more information.
Size
3.50 hectares
Access
Permit required

Not open at all times, by appointment only - contact the Trust for more information.
Parking
Parking available in surrounding streets.
Dogs
No dogs allowed
Grazing animals
No
Reserve manager
London Wildlife Trust
Tel: 020 7261 0447
enquiries@wildlondon.org.uk