Greystones Farm belongs to Gloucestershire Wildlife Trust. As well as the farm, its 161 acres include Salmonsbury Meadows, a Site of Special Scientific Interest. The Meadows are unimproved wet grassland, one of the most endangered wildlife habitats in the UK. For visitors, footpaths pass by hay meadows, grassland, overgrown hedges, pollarded trees and along the banks of the River Eye, which is home to voles and otters. May to July is probably the best time to visit, when wild orchids, irises and other flowers are in bloom.