The return of walking tours to Derry after the easing of Covid-19 restrictions was a welcome sight to all in the city. The familiar yellow jackets of Martin McCrossan City Tours leading groups along the city walls gave us back a sense of normality. Earlier this week, MyDerry spoke to Charlene McCrossan, manager of Martin McCrossan City Tours, to hear about this family business and what she believes makes Derry unique for visitors. “My father started the company 27 years ago until he passed away in 2015,” she said. “When he passed away he was given the title Mr Derry because he was the first tour guide and the first…