Here's an activity to try out with your Pyrenean Shepherd after the two of you have gone swimming a few times. Paddleboarding, as the name implies, combines paddling and surfboarding. Dogs can be taken along for paddleboarding trips so long as they're able to stay calm and composed while the two of you are out in the water. This can be a somewhat expensive activity, as the average of a good quality paddle board is about $900 or so. It would also be wise to invest in a life jacket for both yourself and your Pyrenean Shepherd. This activity is best attempted during days where the weather is sunny and the skies are clear, to reduce the likelihood of having to deal with difficult river, lake or ocean currents.