£16 for unlimited travel ALL DAY on ALL public transport (local AND intercity, practically unrestricted) in an entire country? That's a steal and exactly why I'm considering a trip to Northern Ireland sometime! Can easily visit all 5 cities (Belfast, Lisburn, Newry, Armagh and Derry) in one day especially when 4 of them are relatively close together and only Derry is further out (even then only 2 hours away from Belfast); will probably get an overnight ferry from Liverpool, which is easiest port to get to from Manchester of course, (£32 each way seems reasonable) and I got a whole day (plenty of time) to explore NI with iLink before the next overnight ferry back! Upon arrival in Belfast on Stena Line, where would I buy this iLink for the day? An itinerary I'm thinking is Belfast to Lisburn on the train, then Lisburn to Newry on a train, bus or coach (whichever is most convenient) followed by Newry to Armagh on the bus and then Armagh to Derry if I can time an X4 coach well and finally, a train or coach back to Belfast; maybe I may do it the other way round depending on which is better!