clockwise from north.
Publiched by NikAnt.
Was built in 1780 to protect the northern waterway to Marstrand port. Discover Northern Redoubt
Was built in 1857 to protect the southern waterway to Marstrand port. Discover Southern Redoubt
Was built in 1689 as the core of Marstrand Fortifications and after the rebuilding in the 19th century was considered the fortress as one of the European strongest fortresses. Discover Carlsten Fortress