A visit to the New England Aquarium seemed like a good way to find out how the experts did it. Their tide pools do not have any "tide" or waves. They did have some nice waterfalls. After checking with the elementary school teachers, it was determined that a waterfll would be a pleasant alternative. The dump bucket was removed from the tide pool. The hose that led to the dump bucket was inserted into a PVC pipe. The pipe had numerous small holes drilled along in a row. It was then mounted parallel and about a foot above the end of the tide pool. Concrete and sand were put over the PVC pipe for the sake of aesthetics (caution was taken to avoid plugging the small holes with conrete). Once the water was put through the hose, it flowed through the PVC pipe and out the small holes, and fell a foot to the tide pool. It created a pleasant waterfall effect. There is a switch which directs the waterflow either through the waterfall, or simply through a tube that leads directly to the tide pool, so the teachers can turn the waterfall on or off as their lessons dictate.