You have to leave the UK to go anywhere unless you want to go to ABZ
What a strange statement, is ABZ not in UK, can one not travel literally anywhere from LHR, is LHR not in UK either?
HS3 a distant dream , which is NOT coming to Carlisle it fizzles out at Crewe. We are talking the here and now.
We're not allowed to discuss trains here but just check out website traveline for, here and now, train times, we'd probably only need HS3 to compete with something supersonic!