Many domestic destinations in mid-summer mean stifling heat with a side of strength-sapping humidity. Then there’s Vail. At 8,200 feet, with daytime temperatures peaking in the 70s, Vail, Colorado, and its surroundings offer sweet relief and a surprisingly strong roster of golf courses. If you’re looking to both cool off and heat up — by hitting the longest drives of your life in the thin air — it’s high time to vamoose to Vail.