1. Make it a game
Walk as long as it takes to spot, say, 4 white cars. Then set a new game objective, and keep on walking.
2. Follow a new lead
Let your dog set the pace.
3. Entertain a party
Plan a progressive dinner where each course is a walk away from the next. Start with a healthy appetizers at one house, the main course at the next stop a couple of kilometers away, and dessert at the third.
4. Travel aimlessly -- positively!
Don't plan your route. Instead, make decisions at every turn based on what looks interesting.
5. Dust' em!
Pick a walker on your path who seems a bit more fit and faster than you. Then try to pass her.
6. Enjoy a mini-getaway
Plan an itinerary that takes you and a friend on a brisk, hour-long walk ending at a coffee shop. Or have a breakfast before heading off for your favorite bookstore, then browse awhile before starting for home.
7. Feed the birds
Bring along bread crumbs or a Sunday paper to read on a stop in the park.
8. Play it by ear
For an interval workout, bring your personal stereo. Speed up whenever you hear a fast song.