World's longest tunnel will cost €23bn and cut 8-hour journey to just 40 minutes
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World's longest tunnel will cost €23bn and cut 8-hour journey to just 40 minutes

April 30, 2026
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A mammoth tunnel would stretch 123km and sit 80 metres below the sea floor, slashing an 8-hour journey down to just 40 minutes

World's longest tunnel will cost €23bn and cut 8-hour journey to just 40 minutes
Irish Mirror
Irish Mirror

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