Big pic in Spoiler:Basically there are 4 ways to get to roc. Easiest two is tping from Constan to Sama and then run to the teleporter south of Samarkand, and tping from Jangan to DW to Hotan and from there out the west gate towards the north teleporter on the west of Hotan. Those two are indicated with lines going straight from town to town. The other two are lines if you don't have enough gold to teleport yet. It is possible to run all the way there from Constan or Jangan. Just follow the big black line.