Hartwick Pines State Park is having their annual "Critters in the Moonlight" Halloween event October 11, 2014, from 5-8:30pm, starting at the Visitors Center. This is a non-scary, educational and packed-with-fun Halloween program for children. Make-and-Take critters activities start your child's Halloween fun at the visitors center with our costumed critters and end with an interactive critters walk lighted by our pumpkin trail. Costumes are encouraged. For more information call (989) 348-2537. An $11 Recreation Passport is required for entering State Parks, Recreation Areas, State Forest Campgrounds, Non-motorized Trail Head Parking and Boat Launches. Recreation Passports can be purchased when renewing your State of Michigan license plate tabs or at state parks and recreation areas.