"Sat nav widna be any use where we go"

Au contrair, you can now get sat navs for walkers/cyclists that have landranger OS maps that would be perfect off road.

But, IMHO using a paper map and compass is all part of the off road experience.

I used to do mountain bike orienteering and experimented with all sorts of map setups Inc A3! As others have said, it's almost impossible to read it whilst mobile and actually all that was needed was a place to store it, correctly folded and with easy access. Take the time to look through the route and try to visualise what it will be like, make a few notes as prompts and voila, you have uberthumpers set up!!!!

PS getting lost can be fun, but there are times when that could be dangerous (Salisbury Plain impact area???).

I'm off to the HUMM next weekend. The Zumo is loaded with my route there and back, I've linked as many of those nice green highlighted Michelin routes as I can, but when I'm there my bike will be setup as above, for paper maps. Sat nav is not allowed on the HUMM but TBH I wouldn't use it anyway