Weimaraner: For a hundred years, they have been bred as both a companion dog and a hunting dog, and they have an incredible level of energy. They will only do well with an active owner. They will need to run every day. They enjoy nearly any rambunctious activity, including running beside your bike, jogging with you, hiking with you, swimming, retrieving, and agility. They love to learn new skills. As of yet, no one has reported finding something a Weimaraner can't do.