The island where your ship is docked is called Odderøya. Looking from the outside deck it doesn’t seem like much, but when you take the opportunity to hike around it you will get a whole new perspective on the place. There has been a lot of military activity on the island of Odderøya from the 17th to 20th century and there are many interesting traces to various periods. Did you know this was a quarantine station in the beginning 1800’s or that the batteries used during the great northern war still stand here? There are information signs on the island that tell you the history behind it, the tourist information also has hiking maps for you, but you might want to consider to even go with a guide.