DUNDRUM, 7 m. S.W. of Downpatrick, is seated on a large bay open to the Irish Channel--See extensive ruins of ancient Castle on a rock, built by the Knights Templars, but dismantled by Cromwell. Here the noble mountains of Mourne appear to great advantage. Clogh, a small village 2 m. N.E., has a Danish rath surrounded by a broad deep fosse, with plain strong Castle; and near it Mount Panther, seat of the Annesleys. Castle Wellan has a small lake with pretty scenery; near it, Briansford, a village seated midst romantic mountain landscape, rocks, cataracts, &c. New Castle has some castellated ruins at the foot of Slieve Donard, the highest of the Mourne mountains; and is a much frequented sea-bathing place. The vicinity wild and sterile, but alpine and highly romantic. S. of Dundrum, at Slidderyford, are remains of a Druidical circle. Tullymore Park, near to it, is the seat of the Earl of Clanbrassil, and is situated at one end of the mountains of Mourne, and within 2 m. of the sea. The country around it is wild and rocky, exhibiting some scenes of singular beauty in the romantic style. Two mountain torrents join in the Park, and form sundry cascades in their passage to the sea, into which they fall at Dundrum Bay. The house stands in the park, and, though not lofty in itself, yet commands a fine prospect from its elevated situation. It is an extensive edifice with four fronts of 130 feet each, inclosing a square area, and each front is different from the others; 10 m. from Downpatrick. HILLSBOROUGH, 18 m. N.W. of Downpatrick, a modern built town with excellent inn. See elegant Ch. with stained glass windows; the mansion of the marquis of Downshire; remains of Castle; handsome Market-house; Maze course, 1 m. distant, one of the finest in Ireland, with a hill in the centre. At Anahilt, 3 m. S., the sportsman will find plenty of pike and trout in Lough Erin, and wild-fowl in the extensive bogs. KILLYLEAGH, 5 m. N.E. of Downpatrick, stands on Strangford Lough, and is a thriving place, with handsome Ch. &c. It was the birth-place of the venerable Sir Hans Sloane, founder of the British Museum. See the Castle. At Ardmillar, 6 m. N.E., is a chalybeate spring. Ringhaddy has some remains of a Castle, and has long been famous for its oysters. LOUGHBRICKLAND, on the Dublin road from Belfast, is about 24 m. W. of Downpatrick, on the borders of the Jonesborough mountains, where there is much wild scenery, and a small lake in its immediate vicinity where the sportsman will find plenty of speckled trout. It is noted as an encampment of K. William's army on their way to the battle of the Boyne. From Ellenmoney, a bog near it, towards Points Pass, run two rivers, one N. the other S. Near it and at Scarvagh are remains of fortifications in the Civil Wars.