Saint-Aubin-sur-Mer is located on the Seine River estuary in northern France, approximately 40km southwest of Le Havre. This river-based spot features a narrow channel bordered by chalk cliffs and agricultural land, with a road bridge crossing the water. The site functions as a confined river corridor rather than open water, creating unique constraints for kitesurfing. Water conditions are rough-chop typical of tidal river systems with moderate current flow. Best conditions occur with northwest winds (315°) providing side-shore alignment along the river axis. The spot suits intermediate kiters comfortable with river-specific hazards including bridge structures, variable current, and limited maneuvering space. Wind reliability is relatively low at 21.6%, and the shallow, narrow channel demands careful positioning. Tidal cycles significantly affect water conditions and accessible riding areas. The spot is best approached during slack tide or favorable current phases when water motion is more predictable.