Department of Natural Resources
Generally speaking, pets are welcome in Michigan state parks and campgrounds, state forest (rustic) campgrounds, state forests, harbors, the majority of state-designated trails and boat launches (except for some sites during certain times of the year). Pets are NOT allowed in designated bathing/swimming areas, areas protected for endangered species, such as piping plover, and any other area marked otherwise.
The following rules apply to pets at ALL locations:
Pet-friendly lodging - Pet-friendly lodging is available at several locations. There is an additional fee of $10 per night/pet/cabin or $15 per night/pet/lodge. Up to two pets (cats and dogs only) are allowed.
Pet-friendly shoreline - Pets are allowed along the shoreline with the exception of designated bathing/swimming areas within state parks and areas signed otherwise (ie. piping plover nesting habitat). Pets must be kept on a 6-foot leash even if they are in the water. The following are some highlighted locations: