I was in North Wales last week and had the opportunity to visit the North Wales Coast Line between Rhyl and Abergele on Friday 14/04/23.
Here we see the 1L22 13:27 Holyhead to Birmingham International comprised of 150285 (bet that's fun on such a journey!).
1H90 14:41 Llandudno to Manchester Airport comprised of 197009
1W93 11:25 Cardiff Central to Holyhead comprised of Mk4 coaches (look like they were the one to be used by Grand Central) and a Cl67.