ScotRail is currently running a later train for people travelling back to East Lothian from the Edinburgh festivals.
Until Sunday 28 August, a later train will run on Friday and Saturdays to North Berwick (with a bus connection at Drem to Dunbar). The train will depart Edinburgh Waverley at 00:06. The bus will depart Drem at 00:42.
See additional info at scotrail.co.uk/majorevents