PURPOSE: To hear the sound of water and experience the ambience of a riverbank with eyes and ears even when a small quantity of water is poured to an artificial river constructed in a park or a garden.

CONSTITUTION: An artificial river pouring the water drawn up by a pump is provided with a plurality of speakers 31 arranged on the shore. The speakers 31 are connected to a compact disk player 55, and a compact disk recorded with the sound of the flow of a river is loaded on the compact disk player 55.