The Irish Course Course at Whistling Straits is an 18-hole regulation length golf course in Sheboygan, Wisconsin. This championship layout features 5 sets of teeboxes for the enjoyment of golfers of all skill levels. There is another course on this same property, the Straits Course Course. Online tee times may be available at Whistling Straits or at nearby golf courses, usually offered at a discount from the normal rate.