WE subscribe to OS maps on line. It’s only £20 a year, for as many devices as you like. We have the facility to print on waterproof paper at A4 . Both Bob and I had maps, as we had receded most of it I only had 1:50,000
He had maps, description but also on his smart phone he could call,up the map, with the box and zoom in to an exaggerated 1:25,000 which is brilliant if you don’t know the area.