The Waterloo Recreation Area is a pet-friendly recreation area in Chelsea, MI. It is home to multiple campgrounds, cabins/yurts, beaches, picnic areas, fishing lakes, nature trails, hiking trails, mountain biking trails, equestrian trails, the Gerald Eddy Discovery Center, and much more. The park is more than 20,000 acres and finding where you want to go may take some time. It is recommended that you view the Waterloo Recreation Area map and detailed driving directions for the various units within the park prior to your visit. Dogs are not permitted in buildings or in swimming areas.