The tradition at the start of the Coast to Coast walk is to dip your boots in the sea near the village of St Bees. Just don't get them too wet. This spot, on the Irish Sea coast in West Cumbria, is the starting point for a very long stroll, all the way to the North Sea. It's a tough 190 mile (305km) trail through three National Parks, from England's east coast to its west. "It's got culture, it's got historical interest and it's got challenge, but it isn't too challenging," says Doug Sim, chair of St Bees Parish Council. "And by having a definitive start and finish at the beaches, it feels very complete." The route has now been designated England's newest National Trail following a £5.5m upgrade improving surfacing, signage and accessibility. It was first devised and walked by the legendary fell-walker Alfred Wainwright more than 50 years ago. He felt the Pennine Way - the famous 268-mile (429 km) trail from the Peak District to the Scottish Borders - was too long for most people, taking three weeks.…