Buy a $24 monthly pass and play unlimited disc golf at all the following courses:

Lutsen Resort Check in at the activities in the main lodge. You will be given a course map/score card and this will serve as your pass. 
Highbridge Hills Sign in at the Pro Shop.
Blueberry Hill
Chestnut Grove 
Granite Ridge 
Highbridge Gold  
The Bear 
Woodland Greens 

Fiddler's Creek Golf Center Check in at the Pro Shop.

Maiden Shade Check in at the Camp Office.

Minneapolis Park and Recreation Board
Fort Snelling  Check in at the Pro Shop.
Wirth Par 3  Check in at the Pro Shop.
Wabun Park  This course is free. 

Namekagon National Championship Disc Golf Course at Heartwood Conference Center
  Check in at the Snack Shack.

...check back as new courses are added.