Already in the plans for decades the Gibraltar Tunnel, which will link Morocco and Spain beneath the Strait of Gibraltar, is gaining traction again after years of technical challenges, and political hesitation.
Planned as a 60-kilometre rail tunnel, if completed it would become one of the world’s longest underwater passages. The route would connect Tangier with Algeciras in southern Spain, and serve both passenger and freight trains. Vehicle traffic is not planned, however high-speed rail integration on both sides could be expected in later phases.

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The tunnel’s depth would be around 300 metres below sea level, quite a bit deeper than the Channel Tunnel. Current geotechnical studies focused on seabed conditions and seismic activity are expected to conclude by September 2025. If the report finds positive conditions, construction might begin in 4 to 6 years.

With an estimated cost of €15 billion, the tunnel is a tri-national effort, backed by Spain, Morocco, and the EU. Annual investments into the project have grown steadily, and this would signal a stronger political and financial commitment.

The tunnel is expected to transport between 25.000 and 50.000 people daily, which would not only improve connectivity between Europe and North Africa but also remove a lot of the strain on current sea routes and transportation. The journey would take around 30 to 40 minutes, with the possibility of linking Tangier to Madrid in the future.
The route would service both tourists and daily commuters, however, passport and customs checks will remain due to the crossing of both the EU border and Moroccan border.

While the tunnel has some strong political and civilian support, it isn’t without criticism. There are environmental concerns about marine ecosystems, and questions about long-term costs and economic returns; particularly in Spain. In Morocco, the project is seen as a potential strategic boost to the country’s position as a trade and logistics hub, and as a European partner.

If everything goes according to plan, the tunnel could be completed in 15 years, however this scenario is quite optimistic. There are still environmental, geological, political, and financial hurdles to overcome.

What do you think about a potential connection with Africa and Europe? Are you for or against the project? Let us know in the comments below.