We stay at Fox Hills almost every year, usually in September or October. It's easy to book during that time of the year, typically as an RCI extra vacation. Summer is harder but we have booked it then also as an exchange.
Location - The resort is in Mishicot, Wisconsin, population about 1,300. Approximately 7 miles away are Two Rivers (population around 13,000) and Manitowoc (about 32,000), both on Lake Michigan. The larger towns in the area include Milwaukee, 80 miles south and Green Bay, 35 miles north.
The resort itself is an older facility but is reasonably well maintained. The unit we had this year had been recently refurbished. The resort has multiple villas typically with 4 units per building, two downstairs and two upstairs (no elevators). Most of the units are two or three bedroom lockoffs and are larger than the average timeshare unit. There are also some studios and non-lockoff larger units. There are three golf courses at the resort (you said you are not golfers) and 2 swimming pools, one seasonal outdoor pool and a year round indoor pool.
I can't say much about the activities in the area, we travel there to visit friends and family. I did find a couple of web sites with info which might help.
http://www.manitowoc.info/index_vcb.html
http://www.chicagoreader.com/chicago/manitowoc-two-rivers-wi/Content?oid=879750 (this is old, from 1992, but seems to mostly still apply)