Finalize clothes packing for 10 days: layers for variable October weather (light sweater, compact rain shell), evening smart-casual outfit, comfortable walking shoes, sandals, swimwear, lightweight trousers/jeans, 5–6 shirts/tops, underwear/socks for 10 days (or plan to do 1 laundry mid-trip). Add a small foldable daypack and adapter. Bring secure money belt and copies of travel docs.
Drop luggage at hotel, confirm onward transfers (Santorini flight/ferry) and Istanbul flight times; useful to reconfirm island ferry schedules as they change seasonally.
Iconic ancient citadel with Parthenon; wear comfortable shoes and a sun/ wind layer — typical Oct hours ~8:00am–5:00pm but verify current season hours before going.
Walk the caldera rim from Fira to Oia (or taxi if short on time) — the Oia sunset is famous; bring a windproof layer (often breezy at sunset). Note: Oia sunset viewing gets crowded from ~5:30pm onward.
Boat tour of volcanic islands, hot springs and swim stops; most run 9:00am–1:00pm or 2:00pm–6:00pm — book in advance and wear swimwear and sun protection.
Red Beach is unique volcanic sand, and Akrotiri ruins open ~8:00am–5:00pm in shoulder months (verify hours). Wear sturdy shoes for Akrotiri and a hat for beach time.
Quick breakfast, change into travel-friendly outfit and keep a light jacket for sea spray on the ferry; check ferry schedules (high-speed ~2–3h, conventional ~4–5h).
Half-day trip to the UNESCO site of Delos (boats typically depart ~9:00–10:00 and return ~1:00–2:00pm); the site can be hot and exposed — wear sun protection and good walking shoes. Note Delos may have seasonal hours; check first.
Ferries take ~2.5–4 hours depending on type; a morning fast ferry gets you to Piraeus or Rafina. Alternatively, a domestic flight is quicker if available. Book transfers to Athens airport.
Major landmark; usually open ~9:00am–7:00pm in shoulder season but check current hours. Dress respectfully — no restrictions but modest attire appreciated in some areas.
Active mosque — closed during some prayer times and modest dress is required (women: headscarf available at entrance); plan visits outside of prayer times.
Historic covered market open roughly 9:00am–7:00pm (some shops closed Sundays/holidays) — great for scarves, leather and souvenirs; bring bargaining patience and wear comfortable shoes.