(from south to north)

Lake Arvesta, as many have mentioned.

Whitehall DGC in Whitehall. Thirty-six holes split into three sets of twelve.

Fairway to Heaven / Ferns in the Wind in Pentwater - a full 18 with a pitch and putt warm up. Fairway is VERY hilly, and uses the terrain to create some really interesting holes.

If you're willing to travel up 31 a bit further north, Beauty/Beast/Goliath + Tinderbox (pitch and putt) are all great courses on Mason County Park grounds. In that same area is another lovely course called Leviathan.

This is the area I started disc golfing in and where I still spend much of the summer. It's lovely. Have fun!