Physics learning is a natural phenomena that can be found and learned in everyday life. The water flow of Sampean Baru Dam can be used as an example of the application of dynamic fluids because it can be found in the environment around the students. This study aims to examine the water flow from the Bendungan Sampean Baru as a basis for making LKPD. This research uses a descriptive qualitative method. The measurements taken were the measurement of the width of the river flow, the depth of the river, and measurements using the floating method, followed by mathematical calculations to obtain the cross-sectional area, flow velocity, and flow discharge. The results of the fluid study show that the width of the river flow is inversely proportional to the cross-sectional area of the flow and is in accordance with the law of continuity equations. From the results of the analysis, contextual-based fluid physics learning using water flow, can improve students' understanding of physics learning on the continuity equation material.