the tributary to the pond is slowed down in a cobbled small pond which serves as a paddling pool for children. the overflow oxygen

architecture bathroom bathtub black canal children cobbled curves ditch dock edge expensive fish flood flow forged garden history installation irregular lake landscape landscaping lawn meadow metal natural ornamental overflow oxygen oxygenates paddling park pond pool protection reservoir retaining river riverside rough row serves shallow slowed small stone thermal tourism tributary wall water waterfall waterfront waterway wave which wrought