it has recently become apparent that I may be able to cycle to visit family in Warsaw in the summer of 2025. I live in West Yorkshire, so, even more excitingly, I could do a door-to-door route, as I am only about 150 km from the Hull ferry terminal.
I use cycle.travel regularly and trust it, and so it set this route for me: https://cycle.travel/map/journey/670990. The idea is to do this in 10 days in mid/end of July. Bike with panniers (Tour de Fer), sleeping on campsites, some cooking for myself. I do not care about sightseeing, or stops in nice places, I want to see if I can do it, covering about 150 km per day. If it turns out that this is too much, I can always take the train to catch up on distance.
Could you please comment on the route? Is there something/somewhere I should avoid, or is there a better part of the route?
I also have a question about ferries (I did read the very recent thread about Hull vs Newcastle). I was thinking I would take an overnight ferry from Hull (I could cycle to it from home) and start once it arrives in Rotterdam. I somewhat naively thought it would be cheaper (current price for mid-July is close to £200 - I could fly to Manchester to Warsaw with my bike for less!) but then taking a cheaper ferry from Newcastle would require train travel there, minimising the price advantage. So I may stick to Hull - but the question is: are there any periods during the year where the prices are cheaper? Should I book the place now?
Any comments would be appreciated

IO