All roads leading into Edinburgh pass a sign directing them to the City Bypass A720. Take the City Bypass A720 to the Sheriffhall Roundabout ( East end of Bypass ), then take the A7 Edinburgh road for approx 5 Miles to the Cameron Toll roundabout ( It has a railway bridge going over the top of it ) . Follow the A7 City Centre sign, you are now on Dalkeith Road. You will then come to a set of traffic lights, carry on thru them to the next set of traffic lights, ( cross roads ). turn right at the traffic lights, you should now be on Priestfield Road, drive on for about 50 meters, The Dorstan Guest House is on the left hand side.