Sjømine - Vannmine is a historical landmark located in Fredrikstad. This facility is of great importance to the city's maritime history and is an example of military technology from earlier times. The sea mines were developed to protect ports and coastal areas from enemy attacks, and they represent an important part of Norway's defense strategy during the war years.
The landmark is also a popular place to visit for those interested in history and military technology. The area around Sjømine - Vannmine provides opportunities to learn more about the local history and the strategic measures that were taken to secure the coastline. Visitors can explore the facility and gain insight into how sea mines were used in practice, as well as their role in maritime security.