I think this is the tea house. A neat feature is the downspout from the roof. It is a series of small open containers linked together from the edge of the roof to the ground. They gently direct the water from the roof to the ground allowing it to fall without erosion.
The bamboo pipe extended from the bush carrys water to the larger one in the foreground. When it fills sufficiently to change the center of gravity, it pivots spilling its contents into the stone bowl.
This is a view of the falls from afar. The falls begins near the top of the picture and ends just below the people in the picture. I was waiting for the kids to leave but they were in love and could not seem to escape their embrace.