From Arles train to Marseille-St-Charles, train to Cassis Gare SNCF, then bus to Cassis Casino. 2 h 9 min 24€. From Arles - Georges Clemenceau bus to Aix-en-Provence - R.Schuman, bus to Aubagne ZΙ les Paluds Douard, then bus to Cassis - Gendarmerie. 2 h 57 min 19€. From Arles drive to Cassis. 1 h 15 min 17€.
French Railways (SNCF) operates a train from Arles to Cassis hourly. Tickets cost $19 - $28 and the journey takes 50 min. 2 other operators also service this route. Alternatively, AlloCartreize operates a bus from Arles to Cassis every 4 hours. Tickets cost $5 - $13 and the journey takes 1 h 14 min. 4 other operators also service this route.