A sound sculpture trail in a species-rich protected fen wetland habitat. Created by sound and installation artist Hinde, many of the sculptures incorporate natural materials gathered from the fen. It also includes installations by Oliver Payne and Stevie Wishart. The trail opens on World Listening Day (18 July), there are sculptural speakers for listening to underwater sounds, and site-specific performances led by Jan Hendrickse (20 July). Cambridgeshire Wicken Fen Nature Reserve, 18 July–28 September, £9.90.