A 100 acre former quarry, now home to rare wildlife and habitats. The Wildlife Trust is managing The Chalk Pit as a nature reserve, The Chalk Pit holds many different habitats, including chalk grassland, a limestone lake, broadleaved woodland and wetland.
Wild orchids can be found, as can the Chiltern Gentian. Migrant birds arrive here to breed, such as the rare Turtle Dove. Summer brings butterflies including the Chalk Hill Blue. Great crested newts and dragonflies can also be found here in abundance, attracted to the pools and streams.