lance, when we went a couple of years ago, we got the bus to Kas/Kalkan from the main Otogar in Fethiye. It drops you off at the top of the long narrow road down to Patara then you catch the dolmus from there. Make sure when you get your ticket in Fethiye you tell them you're going to Patara then they'll know to drop you there. Definitely worth a visit, including Patara village itself.