All invited to dress up their pets to enjoy a 1.5-mile walk through the park along the paved trail, with themed stations and pet treats (no human candy) for your pets along the way. 9:30–11 a.m., Rolling Hills County Park, 7660 Stony Creek Rd., Ypsi. $5/dog, plus $6 (nonresidents, $10) vehicle entry fee. Preregistration required at washtenaw.org/registerparks; #RH721307.