We are two adults traveling to UK this week. We will be coming to Edinburgh from London on 9th June using National Rail train service. I just found out regarding 2-for-1 offers available on several attractions in Edinburgh.
I understand that for using these offers we need to have train tickets both in and out of Edinburgh. We already have an inwards train ticket from London but don't have any return ticket (as we will be traveling from Scotland to England by rental car).
Kindly suggest which is the cheapest available ticket (throwaway) to purchase from Edinburgh to a nearby place which can be used to avail the 2-for-1 offers?