Just got an email, buy 2 nights, get 1 free if you spend your weekend working for the State (of Michigan).
Muskegon State Park @MuskegonSP
May 3rd & 4th, camp two nights at Lake Michigan CG, rake or blow off two sites and get one night free, meet on site 103 10 a.m. on 4/3/14.
I wonder if they're charging their off-season $16/night, or the full $28/night... no water in the park until late May from another tweet, but they do have a "filtered" fill up available at another location.
I'll probably go unless the weather forecast is awful.
2013 KZ Sportsmen Classic 200, 20 ft TT
2020 RAM 1500, 5.7 4x4, 8 speed