play-icon Click above to watch a video report by ITV News Anglia's Natalie Gray A military veteran from King's Lynn is cycling the entire coastline of mainland Britain to raise money for a Norfolk charity which has helped him with his mental health. Merv Howard is doing the 5000 mile challenge for Walking With the Wounded. Merv chatting to our reporter Natalie just before he set off on his challenge He served 38 years with the RAF and was a former station warrant officer at RAF Regiment in Honnington in Suffolk but has served around around the world in places like Belize, in The Falklands War, Northern Ireland, Yugoslavia, Iraq, the list goes on and on.