Climbing, Hiking and Biking in Spain: La Pedriza, La Cabrera and Gredos. From Sept 22, meet and stay at Jeff Mariner’s house in the sierra near La Pedriza and La Cabrera with excellent climbing and hiking. Later in the week travel to the mountains of Gredos for climbing and hiking. Ending approximately Oct 1. Contact Jeff Mariner info@mck.or.ke