Just being in the backyard with another dog is NOT enough excersize for a hign energy dog!

I was basically going to say what bckrazy said. Kiara would be uncontrollable if all she did was chill in the backyard. She swims, plays frisbee, fetch, tug, etc. EVERY day numerous times a day. Even after I work a full time job on my feet, we still play several "games" a day that are physically and mentally stimulating to her. High energy dogs NEED this.

We take her on the boat, to the beach, park, etc. every day/every other day.

My other two are fine with a few romps in the backyard and playtimes inside. They are a lot less energy than Kiara.