In reply to The New NickB:
> I did Chester to Holyhead last year, it's only about 7 hours riding, probably less doing it the other way with the wind behind you. It was certainly a bit of a struggle along the coast to Conway with a headwind the whole way.
I want to go back and do the whole ride in one day. It was about 10:30 by the time I left the car park in Holyhead, after I had seen my daughter off. I stopped in Llandudno for lunch. I had to get back to Holyhead at some point, collect the car and drive home. When I worked out the times, I would have been hard pressed to get back from Chester to Holyhead and get home in time, so I got the train from Llandudno back to Holyhead and did Llandudno to Chester the next day.
The hills outside Prestatyn were quite a bit steeper than I anticipated and would have come as a nasty shock if I had done the whole ride in a day. At least I know what to expect next time.