Hiya again Withey,
The walk to the beach from Villa sun takes around 10 minutes, if you come out of the apts turn right to end of street then turn left and walk straight to the end of the road this will take you to the beach and main strip, or if you want the dolmus turn right leaving apts, to bottom of strret turn left you will come to a cross roads, if you cross the road to the left corner you will get the dolmus there it is around 30p very good value, Villa sun is number 33 on the marmaris map, hope this helps you, any more queeries I will help if I can, take care.
Luv wgipk.