Kiel
We stayed in a part of Kiel called Schilksee. In the summer they host a large sailing regatta. We watched cargo ships pass through in and out of Kiel going to and from other northern European countries. Kiel is a harbor city. When I was a teenager we left from Kiel on an overnight ferry to Sweden at Christmas time. That was my first experience on a "cruise" with restaurants, discos, lounges, and cabins on board. I remember we met and hung out with some Swedish military guys then. I remember them bragging about ABBA and Ace of Base.