Salcey Forest is a fragment of a former medieval hunting forest east of the village of Hartwell, between Northampton and Newport Pagnell in Northamptonshire. It is managed by Forestry England and to promote biodiversity, and is also commercially exploited for timber products. The eastern third of the forest, an area of 159.6 hectares, is a biological Site of Special Scientific Interest (SSSI). Description In 2005, a tree-top forest walk was constructed which has attracted many visitors and rises through the forest to a height of about 15 metres (49 ft), at a gradient not exceeding 1 in 12. At the end, a raised viewing platform sits above it at 18 metres (59 ft) from the ground, which is accessed by stairs. Northampton town can be seen from the top of the final tower. The project was placed first in the Environmental category of the British Construction Industry Awards 2006. There is a similar but longer raised walkway at Kew Gardens. In May 2018 the raised walkway was closed to the public following health and safety concerns. There are public footpaths through the forest and a range of wildlife can be observed. The forest is a remnant of the medieval royal hunting forest. Reminders of the past can still be found, with several miles of ancient woodland, building remains and ancient trees. The 'druids' or veteran oaks in Salcey are rare and distinct wildlife habitats, and some of the veteran oaks are believed to be over 500 years old. The forest has a café in one of the main parking areas – which is pay and display, next to the children's play area – most of the remaining parking areas in the forest are free. It is an official Bookcrossingzone and has two bookshelves where books can be left or taken for free. The cafe closes at 16.00 hours in the winter, and the park itself at 17.00 hours. During the Second World War, elephants from circuses were put to use to fell trees. There is a pond named 'The Elephant Pond' where the elephants could bathe at the end of the day. The forest was served by its own railway station on the Stratford-upon-Avon and Midland Junction Railway until 1908. Since October 2019, Salcey Forest has hosted a parkrun, a free, weekly timed walk/run every Saturday morning at 9am. Ecology This is the largest ancient wood in the county and