A Great Dane Puppy needs at least 30 to 60 minutes of daily exercise to keep them healthy.
You should take your Great Dane Puppy for at least a 20 to 30 minute walk each day when possible and if you can and have a yard for the Great Dane Puppy to run around in that will also give them enough exercise.
Great Dane dogs are pretty good indoors but they also need a good sized yard to run around in to get a lot of exercise.
Great Danes grow from small puppies and into large dogs and require a lot of room to move around and also they require a lot of food.
So be prepared to spend some good money feeding your Great Dane as the Great Dane dog is a great eater and likes to constantly eat.
My friend has a Great Dane dog and lives on a farm with several acres which is good because that dog is big and needs a lot of room to run around.