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RER: For longer distances, this suburban train service connects to areas outside the central city.
Buses: An excellent way to see the city while traveling, though they can be subject to traffic delays.
Download helpful transport apps like Google Maps, Citymapper, or the Bonjour app to simplify your navigation.
Currency and Payments
Paris operates on the Euro (€), and while credit cards are widely accepted, carrying some cash is advisable, particularly for purchases under €10 or at local markets. Be mindful that American Express isn't always accepted. Finding ATMs is usually not a problem, but it's important to remember your PIN.