Take breaks and bring water with you
Older puppies need breaks, especially on walks, and you should have some water on hand if they get thirsty.
Many dogs don’t know their own limits and even in old age they can forget that they need time to relax and recover because they are being chased.
Take a few pauses to stop and smell a little before continuing, and offer your senior some water even if they don’t outwardly show any signs of thirst.
Sniffing can also be a great mental exercise. If your dog has a favorite spot, stop there for a moment before moving on.