Suomenlinna Service Tunnel
Tracked since by FinnishPotatoe
Nobody is playing Suomenlinna Service Tunnel on Roblox right now. Its all-time peak is 0 players, reached on . It has been visited 23 times.
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About & history
A service tunnel built in 1981 connecting the island of Suomenlinna to mainland Finland and the capital city Helsinki. The tunnel is 1300m long travelling 60m under the seafloor.

