Monday 20 March 2023
Select a region

Entrepreneur still sees light at the end of the tunnel

Entrepreneur still sees light at the end of the tunnel

Monday 12 April 2021

Entrepreneur still sees light at the end of the tunnel

Monday 12 April 2021

A potential £2.6 billion project that could see an underwater tunnel built linking the Channel Islands to France, continues to be developed by a businessman in Guernsey.

Martyn Dorey presented his plans for an underground tunnel running from Guernsey to Jersey, and then on to France, at a new ‘Drink and Think’ event hosted by Interior Design firm POS Interiors.

“It would take 15 minutes to get from Guernsey to Jersey,” said Mr Dorey. “If you massively reduce a journey time, more people will do it, it’s actually more important than price or anything else.”


Pictured: Mr Dorey was joined by Mattias Holmes from Dorey Financial Modelling for the presentation.

The focal point of the talk was an in-depth look into how the Faroe Islands tunnel has benefited the archipelago and how that could be replicated here.

The Eysturoy tunnel is a large undersea tunnel connecting the island of Streymoy to the island of Eysturoy and it was opened last year. The islands also have 19 other tunnels interconnecting various towns and cities through mountain ranges.

“A shortened trip to the capital has a huge impact on productivity,” said Mr Dorey. 

“It [tunnel construction] grew the economy by 11.3% per annum between 2002 and 2008. Nothing changed in the economy, they just made it super quick to get from A to B.”


Pictured: POS hosted their first ‘Drink and Think’ event in their showroom and are intending to have more speakers in the future.

Mr Dorey first proposed the underwater tunnel in 2020 after developing proposals with a Danish firm called Ramboll.

During his latest presentation Mr Dorey said the project could be completed within six years and pay for itself within thirty: “People are getting faster and faster at digging tunnels.”

“You want to invest in something that will lead to growth,” he continued. “We think shared infrastructure between the Channel Islands is the right way to go.”

Mr Dorey has a variety of proposed routes for the tunnel, and one included a man-made island between Guernsey and Jersey built with the spoil from digging the tunnel. All options would see a train-car much like the Eurotunnel instead of a motorway.

With a feasibility study yet to be done, the project is yet to take off, and there are a number of conversations still to be had with Jersey and France, but Mr Dorey is determined to get people to see his vision for the future.

Sign up to newsletter



Once your comment has been submitted, it won’t appear immediately. There is no need to submit it more than once. Comments are published at the discretion of Bailiwick Publishing, and will include your username.

Posted by Robert Williams on
There could be a number of upsides with this. There would only need to be one airport for the islands for a start. Medical treatment could be co-ordinated between the islands (and France?). Tourism would benefit as more visitors could visit both islands and the cost of getting between the islands would surely be less expensive. Some government departments could be jointly run easier than is possible at present.
To place a comment please login

You have landed on the Bailiwick Express website, however it appears you are based in . Would you like to stay on the site, or visit the site?