hello, a bit of advice please, the wife is planning on visiting a friend in Swindon on July 19th from Swansea, and has asked me about times, on the GWR site its warning about delays etc because the Severn tunnel is having some maintenance. Now she's asking if its worth going, what delays etc...now these are big and for me dangerous questions! to get wrong, so can anyone please help me out? she's looking to catch either the 0743 or 0823 from Swansea,
