MKB Mirus

Batterie Mirus is a former German coastal artillery battery located in Saint Peter and Saint Saviour, Guernsey. Originally named Batterie Nina, it was constructed between November 1941 and mid-1942 as part of the Atlantic Wall fortifications. The battery was the largest of its kind in the Channel Islands, featuring four 30.5 cm guns with a maximum range of 51 km. The site was abandoned after 1945 and fell into disrepair until restoration efforts began in 2012 by Festung Guernsey. Today, the No.1 emplacement is the most accessible position and hosts annual open days for visitors interested in military history and World War II fortifications.