Maine’s state parks offer everything from sunbathing and swimming to hiking, camping and picnicking. Day-use fees range from a couple bucks to $8 per person, and camping is generally $15 to $30 per night. If you expect to do a lot of state park exploring this summer, you might want to consider an annual pass, which is $55 for an individual or $105 for a vehicle. You can purchase them at any park, if an attendant is on duty, or online at maine.gov. Here’s some help figuring out which southern Maine state park you should visit next.