Indiana loves to play with our pittbull. He runs and wrestles. When we go to the dogpark, he runs and plays. If I go to the dogpark with our pitty, then Indiana is more reserved. But when with the pitty, he finds every single mudpuddle and water hole he can and eithers sits in the muddy yucky stuff or rolls around in it. I go in with a white pyrenees and come out with a mudcovered one. He does like to swim after a tennis ball in the dog pond at the park. He doesn't always bring back the ball, though, and he never gives it to me. If he brings it back out of the water, he usually drops it just short of the edge and still in the water, or he runs off with it! I sure do love my pyrenees!