Rossmore Golf Club is considered by many to be the driest parkland course in Ireland. That's due in part to a large-scale drainage project at the club, which enables the golf course to withstand the wet weather that is so common in Ireland. While the Rossmore Golf Club course may be dry, there are plenty of chances for your golf ball to get wet here. The course, which was stretched from nine to 18 holes in 1992, was redesigned to take advantage of the many rivers and streams throughout the property. Rossmore has enough challenging holes to test any golfer.