Piazza Santa Croce, Florence — the central piazza is converted to a sand-covered playing field for the annual tournament; Field dimensions: ~80 m × ~40 m; Marked goal lines at each end of the piazza (low netted goals, span the full width)
Why people argue about this
People often assume that Calcio Storico Fiorentino's playing area must be a sandy beach like in volleyball, but actually, it's a specially prepared sand-covered piazza in Florence with marked goal lines and compacted sand surface to ensure fair play on uneven terrain.