Troy, an island town, an olive coast and a large bay city give this drive four distinct chapters. Spend two nights in Çanakkale, two on Bozcaada, two around Ayvalık and three in İzmir. The nine-night plan leaves a complete day at each northern base and two full days after the final move.
Use the car for Troy, the Geyikli ferry and the mainland roads to Pergamon. Return it on day seven, then explore İzmir on foot and public transport. The example rental ends at Adnan Menderes Airport, so the car return includes a journey back into the city; an airport desk is not a central hotel drop-off.
Bozcaada is the sole island. Adding Gökçeada means another mainland gateway and more nights, while Ephesus or Çeşme supplies one final outing from İzmir. Spring and early autumn suit a route with exposed archaeological sites and beach time. Ferry disruption can still change the island stay, and October swimming depends on the weather rather than the calendar.