Resistance walk - try to walk your dog on different surfaces like sand, shallow water, fallen leaves, snow or on a rough surface.

Enhanced walk - use obstacles when you're out walking like benches, trees, ditches and logs for your dog to jump over, crawl under or balance on.

Fetch - throwing a ball or toy is great exercise for your dog, and you can make him work harder by doing it on a hillside or stairs. Don't throw sticks, though, as they can splinter and cause injury.

For a few more tips on exercise and weight management for your dog click here.