The estate, and the house that's gone
The parkland you walk today was once the private demesne of the Rawdon family, who held Moira from the 17th century. Sir George Rawdon, an English soldier and politician, took over the lands in the 1600s and the family made Moira their seat, laying out gardens and grounds around a great house.
The Rawdon best remembered here is Sir Arthur Rawdon, sometimes called the "father of Irish gardening". He is said to have sent a ship to Jamaica and brought back hundreds of exotic plants to grow at Moira, filling the demesne with rare trees and glasshouse specimens that drew visitors from across Ireland. Some of the veteran chestnuts, oaks and beeches still standing are thought to date from the estate's grand years.
The family's fortunes shifted, and the Rawdons sold Moira to Sir Robert Bateson in the early 1800s and moved on to the Montalto estate near Ballynahinch. The great house itself did not survive — it is recorded as having been demolished around 1870, so the manor is long gone and only the parkland, the old trees and the shape of the grounds remain. Today it belongs to the town: a free, open demesne where a wander among the veteran trees is a full day worth making the time for. As with any council park, the opening details can change through the year, so check the current times before you go.