Just talking to the optician at EyeQ in Great Western Super Centre. He comes by train and walks up from Keperra Station. Says it is an easy walk. Right into Silvertop left into Carribean right into Jarrah left into Keperra St to cross Samford Rd close to Keperra Sanctuary.

There is a bus from the train too. Also from Ferny Grove station but walking from Keperra Station is a real possibility.