Joggers who won't leave home without their personal trainers can now turn a regular trip into an amazing race by signing up with one of three specialty tour companies. First on the block is U.K.-based Leisure Pursuits (; 44-1252/848-421; 10-day trips from $950), which organizes excursions all over the world, including a Tibet Marathon package. While acclimatizing and preparing for the Tibetan Marathon—which goes from the 350-year-old Hemis Monastery (12,467 feet up) to the bottom of the Indus Valley—track fans speed along temple routes and raft the Indus River. Also hitting the pavement is Running Alaska (; 877/782-3521; three-day runs from $1,250), which leads outings on the mountain trails of Alaska's Kenai Peninsula. Guests pick the terrain and level of difficulty each morning and spend the night in lodges on the way. If you're just looking for a taste of the sporting life, Vancouver's Pacific Running Guides (; 877/728-6786; three-hour runs $59) arranges jaunts along the city's best routes, including the Stanley Park seawall, with its panoramic vistas.
—John Lee