 Chimney Meadows is a national nature reserve and Site of Special Scientific Interest which forms part of the floodplain of the River Thames.It includes wild flower meadows with cowslip, yellow rattle, common knapweed, oxeye daisy and pepper-saxifrage which supports insects, wildfowl and waders.It is the largest nature reserve managed by the Berkshire, Buckinghamshire and Oxfordshire Wildlife Trust, who took it over in 2003.