This is the closest Scottsdale gets to Switzerland, but that's not bad for a city that mostly sits only about 1,000 feet above sea level. "The McDowells," as local climbers call them, are best visited when the air is cool, which is about 10 or 11 months out of the year, as long as you like mornings. Hundreds of routes across several distinct sections have been established here over the years. A few spectacular two-pitch routes can be found on Sven Slab, Morrell's Wall, and the 300-foot Gardner's Wall, which has several moderate climbs grouped together for the weekend warriors. Be sure to know what the hell you're doing after leaving the Tom's Thumb parking area and stepping off from the main trail onto the signed, more-technical climbing trails that lead to the cliffs where climbing ropes and harnesses are required. The granite here is a bit crumbly, but the popular routes are solid and fun. Be prepared for a 30- to 45-minute hike, and bring a few water bottles — you'll want to stay awhile.