From Kusadasi you can take a minibus to Guzelcamli (3 YTL).
I went there to do a walk in Dilek national park. I've spent the night before and after the walk in Park Pension. (I was the only one there) (10 YTL per night)
The walk itself was intense. It was about 30 to 35 km and you get up to 1000m altitude. it took me 7.5 hours;
At some moments I saw the island of Samos.
In summer the national park is visited for it's coves.
Im sure most of you with kids will have had a go on one of these. The peddelo is great if your not the one peddeling, my legs still ache now hahahaha.
Equipment: Nothing required exept a strong pair of legs