Athens, Naxos & Santorini
Athens → Náxos → Santorini
A balanced 10-day Greece itinerary with three nights each in Athens, Naxos, and Santorini and only two major base changes.
With seven or eight days, use Athens plus one island rather than cutting both Naxos and Santorini to rushed stays around ferry days.
With 12–14 days, add nights to Naxos or Athens first. Add another island only when seasonal ferry schedules and transfer buffers still keep the route relaxed.