Hadleigh Country ParkHadleigh Country Park is a country park in Hadleigh, Essex, England.HistoryThe park was formerly called Hadleigh Castle Country Park. The park was conceived in the 1930s but not created until the 1970s. Hadleigh Castle is adjacent but separate and managed by English Heritage.FacilitiesThe park is home to an Iron Age roundhouse, mountain biking trails, horse riding, a reservoir, conservation area, walking routes, a visitor centre and natural habitats.Conservation areaThe park incorporates a wetland conservation area and salt marsh that is home to dragonflies.EventsThe park was the venue for mountain biking in the 2012 Summer Olympics. There is also stargazing.