All invited to play disc golf with illuminated course baskets. Bring your own glow discs. 9 p.m.–midnight, Independence Lake County Park, 3200 Jennings, Whitmore Lake. $5 walk-up or preregistration (#IL451100) at washtenaw.org/registerparks, plus $6 (nonresidents, $10) vehicle entry fee. (734) 484–9676.