As you approach Amarante by the road from the main A4 motorway, you could be forgiven for wondering what all the fuss is about, for at this point the absolutely lovely old town is hidden behind an array of modern structures, traffic islands, concrete and steel. Walk no more than 200 yards from the bus station, turn in to Rua 31 Janeiro, pass the lively traditional tabernas and head towards the São Gonçalo Bridge, and yet another enchanting town quickly reveals itself. And oh wow is it lovely. Almost impossibly lovely. The Rio Tamega flows slowly through the centre – serenely slowly, except now and again when it skips over…