Krilo catamaran is running to Dubrovnik from Split and back, via Milna, Hvar, Korčula and Mljet April 1 - October 31. The other line runs June to October from Dubrovnik to Split via Sobra, Korčula, Makarska and Bol. Tickets can be bought at  Elite Travel (Open 08:00 - 16:00.) agencie in port at Gruž. During the summer season, tickets get sold out up to 5 days before the departure.