Our first port of call today is the genuine pretty working wine town of Zell, unspoilt by mass tourism with a lovely promenade beside the calm waters of the Moselle. Here you’ll find black cats everywhere – on houses, signposts, souvenirs and car stickers, but especially on the wine bottles. The Schwartze Katz, or ‘black cat’, is the emblem of Zell’s renowned Riesling wine. The final stop today is Alken, one of the oldest places in Moselle country and surrounded by forests, valleys and vineyards.