I was very impressed on the second day there to be let through by a father and son from North Carolina, who make a trip to the British Isles every year for golf and who were taking a couple of days at Askernish.
An alternative route is to drive to Malaig (an hour past Fort William) and get a 3.5 hour ferry to Lochboisdale on South Uist which is only a 15 minute (or less) drive from the course. Any of these drives/ferry rides will, on a good day, be spectacularly beautiful and worth the journey on their own, as Tom says, but there's no denying it does take an effort to get to Askernish.