We really enjoy the Thousand Trails in St. Clair, Michigan. Full hook-ups are available and it is somewhat rustic. We are now on our second membership.
Been a long time since I've been in the St. Clair area, stayed at the Inn many, many years ago.
Is the CG on/or near the Lake? If you have some photos feel free to post them in this thread..., always great to see the different CG's campsites/views.