This video was recorded during experiments conducted by Hazeme Mohammed ENTPE student atSIWRR located in Ho Chi Minh - Vietnam.br One can follow a wave propagation. The wave maker produces waves of 2 to 7 s period, amplitude of 4 to 10 cm in a sloping canal of 40 m longbr These experiments were conducted in the framework of ANSWER collaborative initiative initiated by GIS HEDD.