(07 May 2015, 8:17 pm)aureolin wrote That's decent for Edinburgh. It's worth keeping an eye on the rail fares though, as you can do Edinburgh and back on fixed tickets for not a lot.
I'd also recommend checking fares for Newcastle to Glasgow Queen Street/Central, because the stretch between Glasgow and Edinburgh is open ticket, despite being fixed between Newcastle and Edinburgh.
If I was to go to Glasgow on Wednesday 24th June for the Day.
07:43 - Newcastle to Glasgow - 10:43 = £10
19:30 - Glasgow to Newcastle - 22:44 = £10
And for Edinburgh
07:43 - Newcastle to Edinburgh - 09:21 = £9
21:00 - Edinburgh to Newcastle - 22:44 = £9
Definately worth taking advantage of the open ticket between Edinburgh and Glasgow, no doubt I could do 12 Hours in Edinburgh by going to Various Spots, not to familiar with Glasgow as I only know around Buchanan Bus Station/Rail Station and the Shopping Area from when I used to go up as a Kid, 2007 was the last time I was up there mind.