not sure if the dolmus are still taking the same route this year as the tansas in
marmaris has moved
but if they are taking the same route then you just get on the normal orange
icmeler dolmus to marmaris as far as it will go which should be the old tansas (not sure now) then from there get the blue/turqouise marmaris dolmus which says otogar on it and it will take you straight there
it is on the outskirts of marmaris just before the road up to the steep mountains
hope this helps
xxxx