We will be here for 1 day - cruise stop on Princess. We would like to spend some time in Oia and Fira. We will probably get the bus to and from Oia as I hear that it can be difficult to find a taxi in Oia to come back to Fira. Can someone tell me how we should go about taking the bus and where we would get off the bus (does Oia have multiple stops?). As well, once we are off the bus how do we get to the blue-roofed top church?