While camping is generally not allowed in Blue Hills, there is a loophole. The Appalachian Mountain Club (outdoors.org) runs Ponkapoag Camp, where 22 cabins and two tent sites are available for weeklong getaways during the summer, and overnights and weekends other times of the year. The accommodations aren’t fancy, but they are well priced and afford a “rustic retreat for people who want to get away from it all,” says Roger Scholl of the AMC