Europe And Africa Eye Landmark Undersea Tunnel Links To Transform Trade Routes

Europe and Africa could soon be physically connected by a pair of ambitious subsea tunnel projects, as governments and engineers explore new ways to strengthen trade resilience amid growing disruption across global shipping routes.

At the heart of the plans are two separate schemes with dramatically different scales but a shared strategic goal: reducing reliance on vulnerable maritime chokepoints and creating faster, more direct links between the continents.

The first, a proposed undersea highway tunnel between Morocco and Portugal, is estimated to cost more than €800 million. The concept would link northern Morocco’s road network with southern Portugal’s Algarve region, creating what planners describe as a new “proximity corridor” across the Atlantic.

Early designs suggest a dual-bore tunnel with separate lanes in each direction, supported by advanced ventilation, safety systems and an emergency corridor. Construction could combine prefabricated submerged sections with tunnel-boring technology adapted to challenging seabed conditions.

However, key elements of the project remain unverified, with officials yet to formally confirm details and final costs likely to fluctuate depending on geological and seismic factors.

Running in parallel—and attracting far greater investment—is the long-discussed subsea rail tunnel linking Morocco and Spain beneath the Strait of Gibraltar. Estimated at between €15 billion and €20 billion, the project would stretch around 42 kilometres, including roughly 27 kilometres underwater.

Designed to carry both passengers and freight, the rail link could cut travel time between Europe and Africa to around 30 minutes, potentially reshaping regional logistics and trade flows.

The scheme has been under consideration for decades but is now gaining renewed momentum as countries seek alternatives to increasingly fragile global shipping routes. The Strait of Gibraltar remains one of the world’s busiest maritime corridors, with around 300 vessels passing through daily, underlining its strategic importance.

If delivered, the tunnel could position North Africa as a major logistics hub, connecting African production centres more directly with European markets while supporting broader trade integration initiatives.

Together, the two projects reflect a growing shift in infrastructure thinking—one that prioritises resilience, diversification and long-term supply chain security in an increasingly uncertain global trading environment.