The short answer is Cards are widely useful, but a small cash reserve helps with small purchases, local transport, markets, rural stops, and places where a terminal is unavailable or offline.
Why this question matters
Payment convenience is strongest in major cities and established businesses, while flexibility matters more in smaller towns and regional travel.
Quick planning answer
Use cards for planned expenses and carry enough cash for one day of small travel purchases.
What to check before booking
- Carry a backup card
- Keep small euro notes and coins
- Check whether a ticket machine accepts cards before boarding
A practical way to decide
1. Start with the part of the trip that is least flexible: the flight, ferry, remote activity, school holiday, or fixed event. 2. Compare the full door-to-door route, including check-in, luggage, walking, waiting, and the final connection. 3. Keep one fallback that protects your sleep, safety, budget, or most important experience.
Related Travelist guides
Sources and update note
This guide uses the official destination and transport sources listed below as a starting point. Schedules, entry rules, prices, opening hours, weather, and local access can change, so verify time-sensitive details again before booking.