Throw it in the water. They won't catch it, but they'll bring it back and be very happy the whole time... But then they're pretty much happy the whole time anyway.

Wen we were living in Richmond Hill area near Savannah, GA, we had a golden that was pretty much the pack leader of all the dogs in the area. It was a small community at the end of a rural route with no through traffic and all the residents let the dogs roam. They would roam through the salt marshes, swim in the river (brackish most of the times), roll in dirt and basically made a huge mess of themselves. Most people just left huge tubs of food and the dogs would just go from house to house to eat and rest. At night, most would return home. We saw out dog maybe once every two days, except when we saw her leading her pack of 20+ dogs in whatever mischief they were into. Probably the best couple of years of her life, I'm guessing...

EDIT: Since there seems to be some interest, it was here. Zoom out and notice how the river circles back. Our house was right there on that narrow strip of land. It seems to be gone in the Streetview though...