If you are the national of a visa-exempt country, you can enter and remain in Greece for up to 90 days in six months. If you wish to stay longer than 90 days, again depending on your nationality you will need to take the following actions: EU/EEA national – register at the relevant Greek authorities within 3 months of arrival. A national of any of the rest of visa exempt countries – apply for a long stay visa from your country of residence. If you are the national of a country that has not signed a visa-free agreement with Greece and the other Schengen members, you must obtain a visa before heading to Greece, or any other Schengen member country, even for short-term visits. ATTENTION: Make sure you are familiar with the 90/180 Schengen Visa Rule. Do not break this rule, not even for a day, or you might pay a price. The consequences of overstaying on your Schengen visa are listed in this article.