Seven days buys two islands without rushing, provided both hang off the same mainland gateway. Croatia’s islands connect to the coast, not to each other: Split’s region carries 17 state routes, Dubrovnik’s carries 5. Crossing between gateways means returning to the mainland and starting again.
The rule nobody states: islands connect to the mainland
The Croatian coastal network is a set of spokes, not a web. Each island is joined to its nearest mainland port and, with a small number of summer exceptions, to nothing else. That is not an accident of commerce — it is what a public service obligation is for. The state pays for the line that gets a resident of Vis to a hospital in Split, not for the line that gets a visitor from Vis to Hvar.
The practical consequence for a seven-day trip is severe. Two islands on the same spoke cluster are a comfortable week. Two islands on different clusters are a week with a day of backtracking in the middle, and the backtrack is rarely mentioned in the plan you copied.
| Gateway | State routes | Of those, carrying vehicles | Catamarans |
|---|---|---|---|
| Split and central Dalmatia | 17 | 10 | 5 |
| Zadar and the Kornati | 15 | 6 | 5 |
| Kvarner and the north | 9 | 5 | 2 |
| Dubrovnik and the far south | 5 | 2 | 2 |
| Šibenik | 4 | 1 | 1 |
| Pula to Zadar (long line) | 1 | 0 | 1 |
Read the top and the bottom of that table together. The central Dalmatian gateway carries 17 state routes; the far south carries 5. A week built out of Split has options when something goes wrong. A week built out of Dubrovnik has fewer, and the ones it has are shorter.
The gateway. Everything on this route leaves from here, and arriving is enough for the first day.
A morning crossing, an afternoon on the island. The corridor is sixteen services thick, so this is the leg least likely to break.
Two full days, which is what stops the week being a series of departures. One of them belongs to the far side of the island rather than the harbour.
Same chain, same direction, foot passengers only. Line 9608 runs Korčula–Prigradica–Hvar–Split; the commercial catamarans cover the same water in summer.
Either back up the chain to Split, or across to Orebić on line 634 and down the peninsula by road to Dubrovnik. The 634 crossing takes 20 minutes.
The last leg is the one that gives the week its flexibility. Line 634 from Dominče to Orebić is a 20-minute car ferry running 14 times a day even in the off-season, rising to 22 a day between 3 July and 30 August. It is the single most reliable link on the southern half of the coast, and it is a road connection, not a sea one.
The week that tries to finish in Dubrovnik by boat
Three services in the register run Split to Dubrovnik in one boat, calling at Hvar and Korčula on the way. All three are commercial catamarans with no public service obligation: two operated by TP Line, one by Kapetan Luka. They are excellent, and they are seasonal in a way the state network is not.
If your week falls outside high summer, plan the Dubrovnik end by road from Orebić instead. It is not a downgrade — the peninsula drive is the better part of the day — but it needs to be in the plan rather than discovered at a ferry desk.
A seven-day trip that ends where it started is also entirely respectable, and it removes the whole question. Split, Hvar, Korčula and back up the chain uses one gateway, one set of operators and one airport. If you want the version that pushes all the way south, that is the ten-day route, and it needs the extra three nights.
What to decide before you book
- Pick one gateway for the whole week. Crossing between clusters costs a day on the mainland, both ways.
- Two islands, three bases, maximum. The fourth base turns the week into packing.
- Treat Orebić as the exit, not the boat. Line 634 runs 14 crossings a day off-season and 22 from 3 July.
- Check whether your dates are commercial-line dates. 17 of 68 routes have no public service obligation behind them.
The seven-day version turns on one question: which gateway
Getting that wrong costs a day in the middle of the week and it is not recoverable. Tell us where you fly into, which week you are travelling and whether Dubrovnik has to be in it, and we will tell you whether the route joins up on your dates or needs the road.
What do you need to work out next?
The route holds. These are the next three decisions.
Where to stay
Where on Hvar for two nights?
Hvar town, Stari Grad and Jelsa are three separate harbours.
Getting around
How do I actually reach Korčula?
The car ferry lands at Dominče, roughly 3 km outside the town.
When to go
Does September still work for this?
Fifteen days above 25 °C in Split, against twenty-nine in August.
Planning
What do three more nights add?
Mljet and the far south, in high summer only.
Ferry data: Agencija za obalni linijski pomorski promet (ZOLPP), 2026 state coastal line register and per-line timetables. Climate data: DHMZ (meteo.hr), climate normals 1971–2000.