It was surprisingly tough considering the only uphill bits were going over bridges or dykes! Flat does mean absolutely no rest from pedalling, and in our case, a strong headwind for the last 30 miles! I started the ride a bit dehydrated from the night before (I may have had one or two beers
) which was a very bad move considering the weather - I literally couldn't drink enough to stay hydrated in the heat. So yeah it was tougher than expected at the end but still a great day's cycling. Of the 110 miles I reckon less than 10 was on roads shared with cars, as most roads had wide, two lane cycle roads alongside them - very envious of their cycling infrastructure!