There was little need for a map when I finally departed Sintra. Martin, whom I'd met when I first arrived in the town, and whose house I'd been staying in for the previous week, had the route planned out for us. He'd cycled most of it before as a tour guide, or had at least visited many of the places at some point during his childhood.At first I was a little hesitant when he expressed an interest in joining me for a week.