The Boston Chapter Mountaineering Committee of the AMC is once again running a rock program this spring. The program is run by volunteers and covers multiple weekends on real rock. The program will teach you how to safely second a traditional climb. Topics taught include knots, belaying, anchors, rappelling, ascending and more. Each topic is typically covered in a day on real rock. While you may already know certain skill, you may not know how to body belay, rappel without a belay device or ascend the rope. There is no prior experience necessary.
More details can be found at: http://www.amcbostonclimbers.com/instruction_rock.html