1. Staying in Plaka or Monastiraki
Plaka has the views. Plaka also has €280/night hotels for what would cost €120 in Koukaki, the neighborhood directly across the Acropolis hill. Koukaki is where Greeks live. Hotels are half the price, restaurants are real, and the metro stop (Akropoli) is a 5-minute walk to the Acropolis entrance. Stay in Koukaki, Mets, or Pangrati. Plaka is for visiting, not for sleeping.
2. Eating dinner at 7 PM
Greeks eat at 9-10 PM. If you go to dinner at 7, you'll be the only people in the restaurant. The kitchen isn't fully prepped, the energy is dead, and you'll spend the meal feeling like you're eating in someone's empty house. By 9:30 the place fills up, the energy lifts, and the food hits its rhythm. Adjust your dinner time. Have a coffee at 6 instead.
3. Falling for the photo menu trap
If a restaurant has photos of food on the menu, it's a tourist trap. Real Greek tavernas don't need photos because their menu changes daily based on what came in fresh. Photos = the same frozen food shipped from a central kitchen. €18 Greek salads happen at photo-menu restaurants. €8 ones happen at handwritten-menu restaurants.
4. Letting the doorman seat you
If a man stands outside a restaurant trying to wave you in, walk past. Greek tavernas with full kitchens don't need to recruit customers from the street. The doorman = "we don't get repeat customers, so we have to catch new ones every day." Real places have full tables of regulars and need no salesmanship.
5. Skipping the National Archaeological Museum
Most tourists do the Acropolis Museum and feel "done with museums." They miss the National Archaeological Museum — which has the Mask of Agamemnon, the Antikythera Mechanism (the world's first computer, from 100 BC), the Artemision Bronze, and every major Greek artifact not on the Acropolis itself. The Acropolis Museum tells the story of one site. The National tells the story of all Greece. Both are essential.
6. Renting a car in Athens
Athens traffic is genuinely awful. Parking is impossible. The metro is one of Europe's best — €1.20 per ride, €4.10 for 24 hours unlimited. Trains are clean, fast, and connect everything. Rent a car ONLY if you're driving out of Athens for a multi-day trip. Inside Athens: metro and €5-10 taxis cover everything.
7. Trusting the taxi quote without the meter
"It will be €30 to your hotel, just get in." It will not be €30. Insist on the meter. Real Athens taxi rides inside the city center are €5-12. The airport flat rate (€40 daytime, €55 night) is the only legitimate flat fare. Use the Free Now app to skip this entirely — fixed prices, GPS-tracked, English-language receipts.
8. Eating souvlaki in Plaka
€8-10 for a Plaka souvlaki pita that should cost €3.50. Walk 10 minutes to Kostas Souvlaki on Pentelis Street, or O Kostas on Plateia Agias Eirinis, or any of the souvlaki stands in Psyrri. Same souvlaki, real prices, vastly better quality because the meat actually rotates instead of sitting under a heat lamp.
9. Skipping Filopappou Hill
The best free Acropolis view in Athens is from Filopappou Hill, directly across the rock. It's a 20-minute walk through pine trees from Thission. You stand at Acropolis-eye-level and see the entire Parthenon at sunset, with all of Athens behind it. Free. Almost no tourists. The locals watch sunset here every evening.
10. The Greek dance show "traditional dinner"
€60 per person for a "traditional Greek dinner with live dance show." It's theater. The food is mediocre, the dancing is for tourists, and no Greek would ever set foot in such a place. If you want real Greek music, ask for a "rebetadiko" — small bars where rebetiko (Greek blues) is played live. €25 for a real evening that isn't a performance.
11. Doing the Acropolis at 11 AM in July
The marble of the Acropolis reflects 35-38°C of summer heat back at you. There's no shade. Tour buses arrive in waves between 10 and 1. You will hate it. Either book the 8 AM time slot or go at 5-7 PM for golden hour. Avoid 11 AM-2 PM in summer at all costs.
12. Tipping like an American
Greek service workers don't expect 18-20% tips. Service is often included on the bill ("υπηρεσία" or "service"). When it isn't, 10% is generous. Greeks themselves tip €1-2 on a €30 dinner. Heavy American-style tipping makes the staff confused, then pleased, then a little sad about the rest of us.
13. Drinking tap water at restaurants without asking for it
Restaurants will bring you bottled water by default — €4-6 per bottle. Athens tap water is excellent and free. Just ask for "νερό από τη βρύση" (nero apo ti vrysi — water from the tap). Most restaurants will bring it without complaint.
14. Staying only 1-2 nights in Athens
Most tourists do Athens as a 36-hour speed run before flying to Santorini. Athens needs 3-4 nights minimum. The Acropolis is 1 day. The Acropolis Museum + National Archaeological Museum is another half day. The neighborhoods (Plaka, Anafiotika, Pangrati, Mets, Koukaki, Exarchia) need slow walking. Cape Sounion is a half-day trip. Don't rush Athens.
15. Buying ferry tickets the day before
In peak summer (June-August), fast-ferry tickets to Santorini and Mykonos sell out 5-7 days ahead. Walking to the ticket office at Piraeus the day before your trip and finding only €130 first-class spots left when you wanted €70 economy: a real recurring tourist mistake. Book ferries at minimum 5 days ahead. Use the Ferryhopper app or the operator websites direct.
16. Trying to "do the islands" in 4 days
"I want to see Santorini, Mykonos, and Crete in 4 days." This is impossible without spending 60% of your time on ferries. Each Greek island needs a minimum of 2 nights to make the ferry travel time worthwhile. Pick fewer islands and stay longer. Better: 4 nights one island vs 1 night each on four islands.
17. Skipping the Athens Riviera
Athens has its own coastline — the "Athens Riviera" stretches from Glyfada to Vouliagmeni to Cape Sounion. Sandy beaches, swimming, beach clubs, seafood tavernas, sunset spots. Most tourists never leave the historical center. They miss the entire half of Athens that's actually beach culture. Take a tram to Glyfada one afternoon. Eat seafood in Vouliagmeni. Watch sunset at Cape Sounion. Athens is a coastal city.