This edition of Adventuring's now-famed Blackberry Ice Cream Hikes in Shenandoah National Park will be a bit more strenuous than the ones we sponsored last summer. We'll have to walk all the way from the crest of the Blue Ridge down to its base and then back up again, using an old, well-graded road now known as the Crusher Ridge Trail. At the foot of the mountain we'll wander over to see a couple of the Potomac Appalachian Trail Conference's rental cabins, one quite historic, the other almost brand new. After we return to our parking area along Skyline Drive at the Stony Man Overlook, we'll drive down a few miles to Skyland to indulge in blackberry ice cream or other treats. Total length of this strenuous round-trip hike will be 6.2 miles, with about 1800 feet of elevation gain. Bring plenty of beverages, lunch, bug spray, sturdy boots and about $20 for fees. We'll carpool at 9 a.m. from the East Falls Church Metro Kiss & Ride lot.