Wikipedia
Vágatunnilin
Vágatunnilin (Faroese) or Vágar Tunnel (English) is a long undersea road tunnel in the Faroe Islands. It goes under Vestmannasund and connects the two islands of Streymoy and Vágar. The capital Tórshavn is located on Streymoy, and Vágar Airport (the only airport on the Faroe Islands) is located on Vágar, so the tunnel connects the capital to the airport.