Travelers to Greece should ensure their passport is valid for at least six months beyond their date of entry. EU citizens do not require a visa for stays up to 90 days, while non-EU citizens may need to apply for a Schengen visa. As of October 2023, there are no mandatory vaccinations for entry, but check any travel advisories for updates on health and safety. It's advisable to have travel insurance and familiarize yourself with local COVID-19 entry restrictions for foreign visitors.
In Greece, it is customary to greet locals with a warm 'Kalimera' (Good morning) or 'Kalispera' (Good evening). When dining, wait for the host to begin the meal and avoid discussing politics or religion at the table. Dress modestly when visiting churches; covering shoulders and knees is expected. Tipping around 5-10% in restaurants is appreciated but not mandatory. Always use both hands when giving or receiving items, and make sure to respect personal space.