Looks like today we are going to visit the uninhabited desert Ormskär-island beside this lived one. There is only one big cannon and ancient bunkers in that island.
There were a manned military base in Utö till 2006. Now here are only some reserves, automated supervision systems and big elder cannons in military areas.
One cannon is quite close to our QTH pointed to our camp. Photo below:
The card-game below is called "Välttö-kasino". No idea what it is in English.