Golf Digest South Africa says - 

Formerly known as Windsor Park, but renamed, this is the older course at Randpark, which has tended to live in the shadow of the club’s main championship course. But Bushwillow is an exceptionally good parkland layout in its own right, narrow in parts, and requiring adept shotmaking skills. Formerly a par 70 layout, it has been upgraded by Golf Data in recent months to par 72, with the lengthening of two long par 4s into par 5s. A new par 3 has been built, and the routing of the course changed in places.