Thank you for the info, unfortunately I didn't get this until after the event, but useful none the less for future reference (I understand a 70 can often be seen at Bristol Parkway).. Spent morning rush hour on Cardiff, loads of DMU's and the light was quite good for photo's. Only one 66 however, then missed another 66 on coal as I left on way back to Newport.
Saw a few guys on Newport who confirmed the holiday period impacting on trains.... It was very quiet. Did get a photo of 57 315 on the Holyhead. Then due to signalling problems ended up on the wrong platform for a decent photo of the freightliner.
Had a couple of hours at Severn Tunnel Junction but the only excitement was a track machine!!!
Back at Newport things picked up, with a few small steel trains. Then to cap it all I missed the 60 on tanks as I was leaving!!!
Was great to get out for the day, but needs better planning next time.