I used to take Carl on a short 10 minute walk when we first started our walks. But now we either go on a 15-20 minute walk, or a 30 minute walk, depending on the weather and how tired he is!
Sometimes even on the shorter walk he'll lay down in the grass, and I'll have to carry him for a little lol!
Off topic but...Carl's so funny too, there's two houses with dogs that we refuses to walk past. He lays down and I have to carry him past their house to protect the little wimp
(One dog is a tiny 2 lb puppy that Carl is really scared of...