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Geography / Eu Infrastructure
The longest EU-funded underwater tunnel in Europe has been opened in which country?
Explanation and memory cue
The longest EU-funded underwater tunnel in Europe is the Świnoujście Tunnel in Poland. It is an immersed-tube tunnel approximately 2.4 km long, connecting the islands of Usedom and Wolin with the city centre of Świnoujście. The project received significant EU Cohesion Policy funding (€162.3 million) and was officially opened in 2023. The previously mentioned Liefkenshoek rail tunnel in Belgium is an important EU-funded tunnel but is not the longest underwater tunnel in Europe.