Greenwich Park is a former hunting park in Greenwich and one of the largest single green spaces in south-east London. One of the Royal Parks of London, and the first to be enclosed (in 1433), it covers , and is part of the Greenwich World Heritage Site. It commands views over the River Thames, the Isle of Dogs and the City of London (Simon Jenkins rated the view of the Royal Hospital with Canary Wharf in the distance as one of the top ten in England). The park is open year-round. It is listed Grade I on the Register of Historic Parks and Gardens. In 2020, it was awarded a National Lottery grant to restore its historic features, build a learning centre, enhance the park's biodiversity, and provide better access for people with disabilities. History The estate of some was originally owned by Saint Peter's Abbey, Ghent, but reverted to the Crown in 1427 and was given by Henry VI to his uncle Humphrey, Duke of Gloucester. He built a house by the river, Bella Court, and a small castle, called Greenwich Castle or Duke Humphrey's Tower, on the hill. The former evolved first into the Tudor Palace of Placentia and then into the Queen's House and Greenwich Hospital. Greenwich Castle, by now in disrepair, was chosen for the site of the Royal Observatory by Charles II in 1675, on the advice of Sir Christopher Wren. As a result of this decision, the Greenwich Prime Meridian crosses Greenwich Park, passing due north and south of the Royal Observatory. Perhaps surprisingly, its route is not marked on the ground. In the 15th century the park was mostly heathland and probably used for hawking. In the next century, deer were introduced by Henry VIII for hunting, and a small collection of deer is maintained today in an area to the south east. James I enclosed the park with a brick wall, twelve feet high and two miles (3 km) long at a cost of £2000, much of which remains and defines the modern boundary. A small section of the boundary wall in the southwest corner of the park was formerly part of Montagu House, one time residence of Caroline of Brunswick, demolished in 1815, though Queen Caroline's bath (c. 1806) is preserved inside the park. James I also commissioned the first modern ice house in 1619 in the Park. In the 17th