The itinerary lasts 20hrs 16min, and has 3 steps.

Bordeaux - Paris
The step from Bordeaux to Paris lasts 2hrs 06min. You'll travel in a high speed train.

Paris - Zurich
The step from Paris to Zurich lasts 4hrs 10min. You'll travel in a high speed train.

Zurich - Zagreb
From Zurich, take the 8.40pm train to wake up refreshed in Croatia the next morning, arriving in Zagreb at 10.39am.
The step from Zurich to Zagreb lasts 14hrs 00min. You'll travel in a Nightjet operated by ÖBB.