On a weekend that may be wet in spots but will also be cool (and who knows how much longer this will last?), we’re advocating exploring by foot. At the coast, you can truly get away from it all (on the Mountains-to-Sea Trail’s Coastal Crescent route). In the Piedmont, it may be your last chance for a cool-weather hike. And in the mountains, you have a chance to sample a 54-mile route you probably don’t know exists.