My Basenjis are 6 and 3. We live in Florida and I usually run with them 1-2, sometimes 3 miles. My run is still just a trot for them, but I let them stop and sniff and potty whenever they need/want, and I just do squats while they do it :). On the 3-milers, I am sure to bring water or let them stop and drink at the beach which is the turn around point. I also wet them down before hand.