Now part of Marine & Lawn Hotels & Resorts, Slieve Donard Nestled at the foot of the Mountains of Mourne, the magnificent Slieve Donard stands among six acres of immaculate private grounds. A golden strand of beach borders one side while the mighty Royal County Down golf course frames the other. This lovingly maintained Victorian hotel, just 30 miles south of Belfast and 90 miles north of Dublin, is home to one of Europe’s finest resort Spas and is perfect for a short break, residential conference or grand event.