What about digging?
Digging is a natural behaviour in dogs. Here are some interesting facts about digging:
Some dogs dig to make cool burrows to lay in during hot weather. ☀ We know dogs that do this exact thing.
Digging is great exercise. It uses some large muscles in the dog's body and helps dogs to keep in great physical form. It is very tiring and energy consuming.
Some breeds have a higher drive to dig that others. For example, the Fox Terrier, a breed that was used for going into burrows, is a proper digger. This sometimes causes problems for people with beautiful gardens, but it is very unfair to ask a dog that was made to dig not to do it. One solution is to designate a part of the garden where the dog can dig freely or get him a sandbox.
Sometimes we need to look out for unusual digging because it could be a sign that the dog is uncomfortable. For example, if a dog often digs on hard surfaces. It would be wise to look for some healthcare professional advice on the matter.
Digging can also be a sign of stress. For example, if a dog digs more and more near the end of a walk it could be because the walk was too long, too exciting or too stressful. To find out, try a shorter, calmer walk next time and observe your dog.
Dogs also dig to bury something tasty and make it even tastier (in dogs opinion).
Finally, as we can see on this picture, digging can be a social event.