This paper reports the simulation of waterfall including spray cloud in different environments. Visualization of liquid behavior on physically based simulation is one of the most challenging issues in computer graphics, especially the simulation of waterfall needs huge amount of computer resources such as calculation power and much memory. Then, we have been trying to visualize the waterfall simulation by dividing the model into three parts: water stream, splashing spray, and spray cloud. Among them, the behavior of spray cloud has much effects on the waterfall appearance as well as the water stream. Therefore, we have simulated the behavior of a waterfall including spray cloud in different environments, and found that the environment in front of the waterfall affects the spray cloud behavior.