The model for Bushwood was Indian Hill Country Club in Winnetka, Illinois, which presented a problem when it came time to shoot: Principal photography would happen in the fall of 1979, and the Chicago area’s unpredictable weather during that time of year disqualified it for production. Ramis and company didn’t want to shoot in California and have the studio breathing down their necks, so they settled on Florida, about as far away from Hollywood as they could get. The reason they chose Grande Oaks Golf Club (then a public course called Rolling Hills) as their primary location is right in the name: oaks. Although located just outside Ft. Lauderdale, the place is littered with oak trees, not palm, so it could double as the Midwest.
A great 5 minutes short from the A.V. Club.