Croatia's rail network connects all major Croatian cities, except Dubrovnik. If you want to visit Dubrovnik, you will have to travel by train to Split, and then go on the bus for Dubrovnik.
There are direct lines from Austria, Czech Republic, Switzerland, Germany, Hungary and Slovenia.
Since 2004, the new 160kph "tilting trains" that connect Zagreb with Split and other major cities in Croatia such as Rijeka and Osijek have been progressively introduced. This results in higher levels of comfort and significantly faster journeys between cities (Zagreb-Split is now 5.5 hours instead of 9, Osijek is now 3 when other trains take around 4.5 hours).
Some Croatian cities (like Zadar) aren't mentioned in the DB timetable. Use the timetable on the HZ website.
Most domestic trains in Croatia do not require seat reservation. Exceptions:
Reservation fees are about € 1 when made locally.
Split – Ogulin
Split – Knin – Zadar
Airport - station link
From Zagreb airport there are 1 or 2 buses per hour to the city bus terminal. Here you can take a tram to the central train station. Eurail passes are not valid on the bus or tram.
Eurail aid office in Croatia
For questions about Croatia, visit the international ticket office at Zagreb Glavi kolodvor (main railway station). It is open 24 hours daily. See the page Eurail aid offices for more aid offices in Europe.