Fromentine is located in the Île de Noirmoutier bay on France's Atlantic coast, a sheltered estuary where freshwater and tidal influences meet. The spot features extensive sand banks and shallow water lagoon characteristics, with the coastline oriented northeast-southwest. The bay setting provides natural wind funneling effects typical of estuary environments. Best conditions occur with northwest winds (315°) which blow side-shore across the bay. The shallow, protected waters make this spot accessible for beginners and intermediate riders seeking calm conditions with minimal swell impact. Wind reliability is relatively low at 28.1%, so sessions require careful weather monitoring. The presence of the bridge, marked navigation channels, and tidal sand bars require local knowledge and awareness of hazard positions. Water temperatures average 13.8°C, necessitating wetsuits for extended sessions. Moderate wave heights (1.32m average) indicate the spot prioritizes flat-water progression over wave riding. This location suits kiters seeking protected, shallow-water conditions in a scenic estuary environment rather than open ocean exposure.