We will climb north on the AT through the famous Rhododendron Tunnel to the luxurious Quarry Gap Shelter, then hike along the Hosack Run Trail, and lunch at Long Pine Run Reservoir. The planned hike includes a second hard climb to the top of Graefenburg Hill, which we may decide to skip depending on the weather. Elevation gain (including Graefenburg) is 2,000 feet, pace 2.7 mph. I was hoping to end the hike with a swim in Caledonia's pool, but…