The Old Course at Portstewart Golf Club occupies a modest parcel of duneland along the Causeway Coast in County Londonderry, predating the club's more celebrated Strand Course by several decades. R. C. Davison laid out this original eighteen in the early twentieth century, establishing the club's presence on terrain that features the characteristic tumbling dunes and coastal grasses of Northern Ireland's northwest shore. The routing works through more compact duneland than its younger sibling, with holes that move among the natural contours in a straightforward, traditional manner. The course serves primarily as a members' layout and a second option for visitors drawn to Portstewart by the championship Strand Course. Its design reflects the era's simpler approach to links golf, with holes that follow the land without extensive earthmoving or dramatic architectural flourishes. The proximity to the Atlantic provides wind exposure and views across the estuary toward Donegal, though the Old Course sits slightly inland from the most dramatic coastal ground. Portstewart Golf Club maintains the Old Course as part of its broader offering, and it provides a quieter, less demanding complement to the Strand's championship challenge. The layout appeals to those seeking a traditional links experience without the length and difficulty of modern tournament venues, and it remains a functional part of the club's daily operations for members and casual visitors alike.