870ac/352ha SSSI, SMI
Grid ref: TQ 552 792 (click for o/s map)
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In 2000 the RSPB acquired Aveley and Wennington Marshes, formerly used by the Ministry of Defence as a firing range and a substantial part of the Inner Thames Marshes SSSI, and has developed it into a fine nature reserve. Some 20km of ditch have been restored and sluices have been installed to control water levels across the reserve. Scrapes – areas of shallow water – have been constructed to provide habitat for breeding waders and wintering waterfowl.
Such a large area of grazing marsh adjacent to the Thames Estuary is very important in wildlife terms and particularly for its birds. Large numbers of wildfowl winter here, with wigeon regularly reaching 1,000 and teal up to 3,500. The reserve also supports important numbers of breeding reed bunting, little grebe, meadow pipit and skylark, with stonechat, barn owl, grasshopper warbler and water rail also breeding. On the Thames nearby, large numbers of dunlin and black-tailed godwits winter, along with curlew, grey plover and turnstone.
The reserve also has a large population of water voles and many unusual plants and invertebrates. Its noisiest resident is the marsh frog, introduced into Kent from mainland Europe in the 1930s and now spreading across southern England.
The RSPB visitor centre contains a cafˇ and shop and provides good views across the marshes and River Thames.
rom M25 junct 30 head west along the A13 to its junction with the A1306 and follow the A1306 south towards Purfleet. Turn right at the traffic lights on to New Tank Hill Road. The entrance is on the right 300m down. SatNav: RM19 1SZ.
Nearest rail station is Purfleet (Fenchurch St line). Turn right outside the station and follow the road to 'The Royal', on the left, then head down to the Thames and join the Riverside Path. This crosses the Mardyke River at a small bridge, after which turn left and follow the path round to the centre.
Open 9.30am to 4.30pm daily. Free access to RSPB members and residents of Havering and Thurrock; otherwise £2.50/adult, £1/child.
Something of interest at all times of the year: highlights are large movements of migrating birds in autumn and large flocks of wildfowl and waders in winter.
Paths and trails are suitable for wheelchairs.
Web www.rspb.org.uk or phone 01708 899840