The frog log is a must have for anyone with a pool, pond, or any other open water in their backyard. It gives chipmunks, squirrels, frogs, turtles, mice, and other small creatures, the ability to get out of a potentially deadly situation. Once they have fallen into your pool they will swim and swim and swim until they get tired. The frog log gives them a path out of your pool but also, keeps your pool clean. They can scurry down, take the little drink of water they want and then climb back up!