37688 Great Rocks passes Tredington on 10 May 2021 with the 5Z37 12:45 Crewe to Laira ECS, conveying former East Midlands Trains Mk3 HST coaches to help out GWR during the Class 800 temporary withdrawal period. Unfortunately my run of good luck with the sun eluded me here, as the sun only appeared a few seconds after the train had passed. On the plus side, I did actually arrive just in time. It was running 33 minutes early, but when I set off on my 50 mile journey to get here, it was actually running 20 minutes late.