The next airport is Dalaman
Then you go by Taxi, Bus or rented car to Marmaris and further to Bozburun (the trip takes about 2,5 hours).

For Sailors: Bozburun is situated in the Yesilova-Körfezi, south-west of Marmaris and opposite of the Greek island Simi.
Note: Bozburun is also a break at the "Blue Tour" between Marmaris and Bodrum

Over Rhodos: There are daily ferries between Rhodos and Marmaris.
(Note: This way is only suitable, if you return home from Turkey.)