Streamflow, or channel runoff, is the flow of water in streams, rivers, and other channels, and is a major element of the water cycle. Waterflow expands the default rivers and lakes with smaller side streams. The record of flow over time is called a hydrograph. The way msfs terrain look as we see is because of water flowing over the terrains; this scenery add those water features that have shaped terrains all around the world. Connecting lakes; rivers through small to medium size streams. Version 2 is a complete overhaul; featuring an improved balance between number of features added and Msfs performance; improved water visibility and blending into existing default water features; water streams added are also visible in the default vfr map and aircrafts fly instruments.