Greece, as an EU member state that has ratified the Schengen Agreement, allows citizens to move within the EU by simply presenting their identity card, eliminating the need for a passport.

A passport, however, proves beneficial for various transactions, including foreign exchange and purchases. Additionally, airlines and other carriers often require a valid passport and/or ID card, or another form of official identification. It's important to note that a visa is not required for short stays of up to three months.

For citizens of countries outside the Schengen Agreement, entry into Greece and the EU requires a visa. It is recommended to gather information from local Greek embassies or consulates, or consult your travel agent for guidance on the visa application process.

You can verify whether a visa is required for your visit to Greece by checking the official website of the Greek Ministry of Foreign Affairs.

Visitors with a visa staying in Greece are advised to have suitable insurance coverage to address medical or other emergencies during their stay.