Hello! That sounds like an amazing trip you're planning. Let's get you prepared for your visit to Greece.

Best Time to Visit:
The best time to visit Athens, Delphi, and Metéora in Greece is springtime (April to early June) or autumn (September and October). You'll experience moderate temperatures and fewer crowds than in peak summer.

Route and Accessibility:
The Athens International Airport is well connected to both domestic and international routes. From there, you can reach Delphi and Metéora via road in a rental car or by taking a bus from Athens. There are also Guided Tours available from Athens to these sites.

Accommodation and Booking:
Accommodation in Athens ranges from luxury hotels to budget-friendly hostels. In Delphi and Metéora, options are more limited to smaller hotels and guesthouses. It's recommended to book your accommodations in advance, especially during peak season.

Clothing and Essentials:
Pack light layers for the daytime and warmer ones for the evening. Comfortable footwear is a must as these locations involve a fair bit of walking. Don't forget essentials like sunscreen, a hat, sunglasses, and a reusable water bottle.

Health and Safety:
It's a good idea to have travel insurance in case of any medical emergencies. Greece is generally a safe country, but like anywhere, it’s a good idea to keep an eye on your belongings, especially in crowded tourist areas.

Local Etiquette and Respect:
Greeks are known for their hospitality. Remember to be courteous and respectful of local customs. Dress modestly when visiting religious sites. Learning a few basic phrases in Greek can be appreciated.