Using Google Maps is easiest – enter the postcode EH5 2AN and set travel mode to Public Transport then when you get here look out for house number 8 (Fraser Crescent). Note: bus fares are £1.70 flat rate per person per journey and you need exact change. If you are planning on more than 2 journeys in a day it’s best to ask the driver for a Day Saver ticket at £4.
Update August 2019: buses now accept contactless payments. You need to use a different card for each person, and you will be charged no more than £4 per day for unlimited travel – see https://www.lothianbuses.com/contactless/