The Biggest Mistakes First-Timers Make in the Czech Republic

Nothing here will ruin your trip — the Czech Republic is genuinely easy, safe, and forgiving for first-timers. But a handful of small, specific mistakes show up constantly, and each one either costs you money you didn't need to spend or time you can't get back. Here's the honest list.

Money mistakes

• Exchanging cash at an Old Town Square currency booth. The '0% commission' sign is real — the markup is just baked into a worse exchange rate instead. Use a bank-branded ATM (Česká spořitelna, ČSOB, Komerční banka) or a proper exchange office away from the main tourist squares.
• Assuming euros work fine, or work at a fair rate. The Czech Republic uses the koruna (CZK), not the euro, despite EU membership. Some touristy spots will still take euros, but at a rate that's reliably worse than paying in koruna.
• Accepting 'Dynamic Currency Conversion' at an ATM or card terminal. When a machine asks 'charge in USD/GBP or CZK?', always choose koruna — the home-currency option applies a worse exchange rate than your own bank would give you.

Getting-around mistakes

• Hailing a taxi off the street instead of opening Bolt, Uber, or Liftago. Prague's old meter-tampering reputation is largely a thing of the past for app-based rides, which show the fare upfront — but it's still a real risk flagging a cab outside a tourist restaurant or on Wenceslas Square.
• Not validating a paper tram or metro ticket. Digital tickets bought through the PID Lítačka app are validated automatically, but paper tickets need to be stamped in the small yellow machines the first time you use them — inspectors do random checks, and fines for an unvalidated ticket are steep.
• Wearing sandals or heels for a castle-and-cobblestones day. The walk up to Prague Castle, Český Krumlov's old town, and most of the country's historic centers are genuinely uneven, steep cobblestone — real shoes make a noticeable difference.

Sightseeing & timing mistakes

• Showing up at the Sedlec Ossuary (Kutná Hora) without a booked timed slot. Since 2020 this has run strict limited-capacity entry — arriving without one can mean being turned away outright, especially once mid-morning tour coaches arrive.
• Expecting a spectacle from the Astronomical Clock's hourly show. It's a genuine 600-year-old mechanism worth seeing once, but the show itself lasts under a minute and is more about the crowd than any real theatrics — climbing the adjoining Old Town Hall Tower is arguably the better use of your time.
• Rushing Český Krumlov as a 3-hour tour-bus round trip. You'll get maybe 2 hours in the actual town once you subtract travel and lunch; the direct public bus (RegioJet or FlixBus) gives you far more time and flexibility for the same or less money — an overnight is even better.

Beer hall & food mistakes

• Leaving your glass uncovered when you want to stop drinking. Many beer halls automatically bring a fresh beer once yours is empty unless you place a coaster over the glass — a small, genuinely useful trick nobody explains upfront.
• Skipping the daily lunch menu (denní menu). Most restaurants post a cheap, fresh 2–3 course lunch special (roughly $6–9) on a chalkboard outside, available only on weekdays, usually 11am–2pm — genuinely the best-value meal of the day, and easy to miss if you don't know to look for it.
• Over- or under-tipping. Around 10% at sit-down restaurants is standard and appreciated; rounding up is fine for smaller tabs like a coffee or beer. There's no need for US-style 18–20%, and a totally untipped bill at a proper restaurant does raise eyebrows.

The one mistake that undoes all the others

Cramming Prague, Český Krumlov, Kutná Hora, and a Vienna day trip into 3–4 days. Every mistake above is a small, fixable annoyance — but an overpacked itinerary is what actually ruins a trip, turning every one of these places into a rushed blur instead of the slow, unhurried experience that makes the Czech Republic worth visiting in the first place. Give Prague 3–4 nights on its own before adding anything else.