Sample Map The 200 mile Coast & Castles Cycle Route (National Route 1) links the Forth and Tyne estuaries, taking in some of Britain's best built and natural heritage, including Hadrian's Wall World Heritage Site, unspoiled coastline and the beautiful Tweed Valley before arriving in Edinburgh, Scotland's capital city. The route also forms part of the international North Sea Cycle Route. Full colour fold-out map, printed on waterproof paper. Scale 1:100 000.