Taking the two hour road that winds around small hills on Edremit bay leads to Assos. Along the road you will see many cheap and beautiful camping places right by the sea, especially around Ayvacik (not Ayvalik, a more popular destination). There are also many hotels and motels in the area, usually serving weekend travelers from Istanbul and Bursa.
Assos has only just a few hotels and guesthouses since there is really no room for expansion as the steep rocky coastline will not allow it. The temple on top of the hill is one of those places sunset is spectacular to watch over the Eagean sea. Assos is one of the most romantic places in Turkey and is a great destination for a 2-3 day stay.