If there's one item that's essential for walking the Hadrian’s Wall Path National Trail (other than the right clothing) - then this has to be it. If you appreciate the wisdom of always being able to locate your position and you want to see the whole trail on one map, then the Harvey's Hadrian's Wall Path Map is the solution.

A tough polyethylene 1:40,000 scale map for walkers - 100% waterproof, half the weight of a laminated map and comes in its own conveniently-sized plastic wallet, that makes viewing the section you are walking nice and easy - alleviating the constant need to pull out and unfold your map every time you want to know where you are. GPS compatible.