Le Castellet Airport — Le Castellet, Var, France

In the hills of Provence, Le Castellet Airport, designated CTT, sits directly beside the Circuit Paul Ricard, a motor-racing venue that once hosted the French Grand Prix and continues to attract Formula One testing and historic racing events. The airfield caters overwhelmingly to general and business aviation, with private jets ferrying racing teams, executives, and wealthy spectators in and out during major track events. Away from racing weekends, traffic thins considerably, leaving the runway mostly to flight schools and light aircraft owners based in the Var department. Its proximity to Mediterranean coastal towns adds a further layer of seasonal leisure traffic each summer.