The City of Derry Golf Club's course at Prehen sits on gently rolling parkland along the banks of the River Foyle, just outside Londonderry in Northern Ireland. The layout was designed by Willie Park Jr., the accomplished Scottish architect and two-time Open Championship winner who created numerous courses across the British Isles in the late nineteenth and early twentieth centuries. Park's design work typically emphasized strategic bunkering and natural contours, and Prehen reflects this approach within its wooded riverside setting. The course occupies mature parkland with established trees framing many holes and the River Foyle forming a scenic boundary along portions of the property. The terrain features moderate elevation changes that add variety to the round without becoming overly strenuous. Park routed the holes to take advantage of the natural topography, creating a mix of hole lengths and angles that require thoughtful club selection and course management rather than relying solely on length. City of Derry Golf Club has a long history in the region, serving as a traditional members' club with roots extending back over a century. The club maintains its parkland character through careful tree management and conditioning appropriate to the Irish climate. While not a major championship venue, Prehen provides a representative example of early twentieth-century parkland design in Northern Ireland, offering members and visitors a straightforward test of golf within an attractive riverside landscape.