Part of the Hastings Hotel group, this 180 room resort is found in Newcastle, County Down, on the edge of the Mountains of Mourne. The prestigious Royal County Down Golf Club sits on one side, with a scenic sandy beach on the other. Slieve Donard has hosted visitors for over a century, with the more recent additions of a luxe mountain view spa and gym. The decor here is traditional, with splashes of bold colour and uber-comfy ‘cloud’ beds. There are three dining options – the formal Oak Restaurant, the Lighthouse Lounge specialising in healthy options and the cosy Percy French Inn, named after the composer of the song The Mountains of Mourne.