The road running through the tunnel links the eastern side of The Rock (including Catalan Bay and Sandy Bay) via Sir Herbert Miles Road, with Europa Point, at the southern tip of Gibraltar via Europa Advance Road.
Jalan yang melintas di terowongan ini menghubungkan sisi timur The Rock (termasuk Catalan Bay dan Sandy Bay) melalui Sir Herbert Miles Road, dengan Europa Point, di ujung selatan Gibraltar melalui Europa Advance Road.