Wavy Waterfall This is the 300th post. We now have 5000 page views from all around the world including Europe and Asia. Coming from the higher pond to the lower pond, these miniature waves are the cause of the uneven rocks below. Then the waves all off the ledge and into the smaller, lower pond. There must have been some algae on the rocks below because the water turned green as soon as it hit the rocks before the ledge. What a cool water feature, since I'm all into the water and water features.