A few weeks ago Brian was watering our fruit trees (we got an apple tree and a peach tree for our four year anniversary), and then the kids flew the coop.
Before I could stop them (we actually had places to go that afternoon), the big three had their swimsuits on and were outside running through the hose. Because classy.
Sometimes you want to run through water. Sometimes you want to find a goal and basketball and drag them across the backyard.
Turning a regular backyard slide into a water slide is also a good option. Although it tends to get a bit dangerous.