Guided walking tours are popular with over-50 travelers. They run the gamut from strolls on flat terrain to up-and-down challenges in the Alps. Big Wild Adventures leads backpack camping trips with tents, equipment and meals included for less than $2,000. Or you can walk about in picturesque settings around the globe — Tuscany, Costa Rica, Australia, even Bhutan. If hiking with a backpack and camping don’t appeal, options include lodging-to-lodging walks , where luggage is carried for you. With some of these options offered by Breakaway Adventures, VBT, Country Walkers, Backroads and Butterfield & Robinson, you wine and dine in upscale hotels after a day on the trail. Expect to pay $2,000 or more per person a week, $5,000 and up for exotic adventures that include super-luxe lodging and extras such as wine tastings or city tours led by an expert.