Early architect Tom Morris designed this course in the late 1800s, but it owes its character to extensive renovations by Mackenzie Ross in the 1940s. Indeed, some rank Castletown ahead of Ross's signature design at Turnberry. The site is exquisite, a spur of land jutting off the Isle of Man to the southeast, and the course melds seamlessly into it. Locals joke that a botched drive near the end could land in Ireland or England. The sea breezes are naturally a major factor on the wide-open terrain. With just a couple of clubs, a player can knock off an entire round in under three hours on a course notable for the quality of its grasses. Some locals play here, but most of the players are those who come for the holidays in the summer. One concession to the modern game is adjustment of the bunkering to give the course a little more bite.