One of the benefits of taking a holiday in the Black Forest (Schwarzwald) in Germany is that travel on all forms of public transport in this huge area (approximately 250 x 60km) is free to guests. Taking advantage of this, I took a train from Hinterzarten on a day trip to Basel, making a change of trains at Freiburg. The day was spent walking through the central area of the city, taking video of the trams on the way.