Ten days is the full southern chain: Split, Hvar, Korčula, Mljet, Dubrovnik. It exists as a through-route only in high summer. State line 9807 runs its full Ubli to Dubrovnik service from 3 July to 30 August, and no itinerary post says so.
The route, and the date that makes or breaks it
Ten nights is the length at which Croatia stops being a base-and-day-trips holiday and becomes a line drawn down the coast. The line is real: Split to Hvar to Korčula to Mljet to Dubrovnik is the natural sequence, each leg short, each one southward, no backtracking. It is also the single most date-dependent itinerary in the country.
The dependency sits on one state line. Line 9807 is the TP Line catamaran that runs Ubli on Lastovo, then Korčula, Polače on Mljet, Sobra on Mljet, Šipanska Luka and Dubrovnik. That full routing operates between 3 July and 30 August. Off-season the same line number serves Sobra, Šipanska Luka and Dubrovnik only, and Korčula and Polače are not on it at all.
Arrive, and use the second day rather than the first. The gateway with the most routes behind it if the plan needs rebuilding.
The thickest corridor on the coast: sixteen services from Split touch the island. Two nights is enough to see the far side, not just the harbour.
Line 9608 or a commercial catamaran down the chain. The town is compact enough that two nights covers it and the vineyards behind it.
Polače for the national park. This is the leg that only exists in the 9807 window; outside it, Mljet is reached from Pelješac at Sobra instead.
In by catamaran in high summer, by road down the peninsula otherwise. Either way, arrive with a day in hand before the flight.
Every leg above is short. That is the appeal of the route and it is also the trap: five short legs still means five departure times, five check-outs and five afternoons that belong to a boat. Ten nights absorbs that. Seven does not, which is why the seven-day route stops at Korčula.
Leg by leg, with the dates attached
This is the table the itinerary posts do not print, because it requires reading the per-line timetables rather than a booking engine. A booking engine shows you what is loaded for sale today; it does not tell you that the leg disappears in three weeks.
| Leg | Line | When it runs | Carries a car |
|---|---|---|---|
| Split → Hvar | 9604 and fifteen others | Year-round on the state line, one rotation a day | Two on the corridor, one to Hvar town |
| Hvar → Korčula | 9608, plus commercial catamarans | A state line with an obligation to run; commercial lines to summer demand | No |
| Korčula → Mljet (Polače) | 9807 | Full routing 3 July – 30 August only | No |
| Mljet → Dubrovnik | 9807 | Sobra and Šipanska Luka to Dubrovnik year-round | No |
| Korčula → Orebić (the road exit) | 634 | Year-round, 14 crossings a day off-season, 22 from 3 July | Yes |
The fifth row is the escape hatch and it is the reason this route survives outside high summer at all. Line 634 crosses from Dominče to Orebić in 20 minutes, every day of the year, and from Orebić the Pelješac road reaches Dubrovnik without a boat. It berths at Dominče, roughly 3 km outside Korčula town, which matters if you are walking with bags.
3 July is a real date, not a rounding of “summer”
Line 9807 publishes tariffs for 13 port pairs. Only 3 of them — Dubrovnik–Sobra, Dubrovnik–Šipanska Luka and Šipanska Luka–Sobra — have an off-season price at all. There is no off-season Dubrovnik–Korčula fare and no off-season Dubrovnik–Polače fare, because outside the window those sailings do not happen.
A ten-day southbound route that works on 10 July does not exist on 10 June. The same sequence of towns, the same map, and one of the middle legs is simply not there. Plan June and September around Pelješac and the road; plan July and August around the boat.
It is worth stating the window as a number rather than a season, because “summer” on this coast covers four months and the routing covers eight weeks of them.
3 July – 30 August
the only window in which line 9807 runs its full route
If the dates are fixed and they fall outside the window, the route still works — it just stops being a chain and becomes two halves joined at Orebić. That version is slower on paper and more robust in practice, and it is what we would build for anyone travelling in June or late September. The wider case for going in the shoulder is on the island hopping page.
What to decide before you book
- Check your dates against 3 July and 30 August first. Everything else on this route is downstream of that one window.
- Two nights minimum per island. Five one-night stops in ten days is a transfer schedule, not a holiday.
- Decide Mljet by the calendar. Polače is on line 9807 in the window; outside it, Mljet is reached at Sobra.
- Keep the tenth night near the airport. The last leg is the one you cannot rebook if a sailing is cancelled.
Send us the ten dates and we will tell you if the chain joins up
This is the one route on the site that genuinely cannot be self-served, because the critical fact is a date range buried in a Croatian-language timetable PDF rather than anything a booking site displays. We check line 9807, 9608 and 634 against your dates before anything is booked.
What do you need to work out next?
The chain either joins up or it does not. These come next either way.
Where to stay
Where should the last two nights be?
Inside the walls is the shortest walk and the worst night’s sleep.
Getting around
Is Mljet worth two of the ten nights?
Polače sits inside the national park; Sobra is the year-round port.
When to go
Why does everything hinge on July?
Line 9807 runs its full route from 3 July, and 634 goes to 22 crossings a day.
Planning
What if my dates miss the window?
The chain rebuilds around Pelješac and a 20-minute car ferry.
Ferry data: Agencija za obalni linijski pomorski promet (ZOLPP), 2026 state coastal line register and per-line timetables.