Cliff and I walk every morning for exercise, and we take Sadie along. However, she has to stay right at my side, and she isn't allowed to sniff the grass or romp. We tried turning her loose, but she doesn't come too well when she's excited or busy, and I was afraid I'd lose her. We like to make our walk as physically demanding as possible and get the most aerobic benefit we can in a half-hour. I'm sure the discipline is good for Sadie, having to walk beside us like that. But it can't be too much fun.
So after Cliff goes to work in the afternoon, I end up taking Sadie for a walk that is just for her. I put the twenty-foot leash on her and allow her to run ahead or lag behind as she pleases. I stop and wait while she sniffs and digs. This gives me a chance to look around and see spring coming to the woods. If Sadie brings me a stick to throw, I throw it. In the woods and brush, sometimes the leash gets wrapped around a tree or caught on a root, but it isn't too big a problem.
So, Sadie takes a walk with me in the morning; and I take a walk with Sadie in the afternoon.