Best Fitness Programs: Turtle Bay Resort; Oahu, Hawaii
This gorgeous oceanfront property is a fitness buff's dream. Stop at the Guidepost, an adventure concierge that will set you up with surf lessons, horseback rides, and snorkeling led by locals who know all the best spots. At the resort, bike or run along 12 miles of trails that crisscross the property, cooling off at the pristine beaches you pass along the way.
(Rooms start at $300 a night; turtlebayresort.com)
Photo: Turtle Bay Resort