Practical information for travelling to Greece. Below are the most important tips regarding entry, transport, money, health and safety. Entry and visa Visa requirements depend on your passport — citizens of Poland and most EU countries usually travel visa-free or with online authorization. Your passport should be valid for at least six months from the departure date. Check current requirements on the consulate website before travel. Money and payments The local currency is EUR. Credit cards (Visa, Mastercard) work in cities and larger tourist areas. Cash is useful at markets, in small shops, for tips and in rural regions. ATMs are readily available in cities — they charge a withdrawal fee. Transport International airports connect the country with Europe and the world. Domestically there is a network of buses, trains and taxis; car rental offers the greatest flexibility, especially off the main routes. In major cities public transport is cheap and efficient. Do not mix unmarked taxis with licensed ones. Health and safety Greece is generally safe for tourists, but take the usual precautions in high-traffic areas. Travel insurance with medical coverage is recommended. Tap water in cities is usually safe, but in rural areas bottled water is preferred. The emergency number across most of Europe is 112. Climate and best time to travel Climate varies between regions — the coast is warmer and more humid, the interior has four seasons. Peak season is summer for beaches and festivals; spring and autumn offer better conditions for cultural travel; winter is ideal for skiing and cultural cities. Tipping and etiquette Tips (5-10% in restaurants) are appreciated. Dress modestly when visiting religious sites. Handshakes, eye contact and a smile are standard greetings. Learning a few words of the local language is appreciated.