For some, there's nothing better on a hot summer day than spending time enjoying a cool dip in a swimming pool, lake or maybe even a favorite stream. Regardless of the aquatic venue, more than likely those participating in the activity incorporate a couple of approaches to the water — you have the splash, such as the cannonball, which most certainly everyone notices. Or what I like to call the ripple, which is often more subtle but just as effective. The splash, via the cannonball or any other means, is an immediate attention grabber while the ripple virtually goes unnoticed, but seems to offer greater staying power.