Jadrolinija ferries operate to Elafiti islands, Mljet island, between Mljet and Pelješac, and to the Italian port of Bari. During summer, May 31 - September 30 there is also a daily catamaran line connecting Dubrovnik to Split via Korčula and Hvar islands. Tickets for local catamarans and international ferries can be purchased online. For local catamarans it is possible to book one month in advance (maximum) and no later than 24 hours prior to travelling.