I totally agree with the vet's suggestion. I've noticed my Saint Bernard enjoys multiple shorter walks more. It keeps him active and less prone to the lethargy that can come with longer outings. It also makes bathroom breaks easier, especially during the winter!

I've heard that from my vet as well! Shorter walks seem to help my Saint Bernard stay more energized throughout the day. They tend to get really tired with just one long walk, so breaking it up seems better for their joints too.