Book four nights
This plan uses three nights in Sarajevo and one night in Mostar. Day five is a departure day without another room allowance. Each day’s figure is a chosen backpacker allowance for one traveller; the stay component means one individual bed, if available.
Check the rail day before booking rooms
Use ŽFBH for both directions and check the current ticket channel. A seasonal international service can change the afternoon pattern on selected days, so choose the return before fixing the Mostar plan.
Keep Sarajevo’s outer visits separate
The Tunnel of Hope and Trebević are different half-day plans. Choose one based on interest, weather and current access rather than forcing both into a central walking day.
Replace every allowance
The daily figures are examples, not live offers. Add the airport, Sarajevo to Mostar train, cable car, tours and any onward bus separately unless the day note explicitly includes them.