An acient water canal was found while building the new main station building. The canal connected Metier Lake with Londre Baisin, now partially covered by the new main station. The route would extend further on to the ocean. Built in November 2021, the canal was once one of the most important routes for merchants until it was made obsolete by the extension of the city towards
Loirent.
The canal was later connected to the underground water station under the third main station, initially planned to be located at the site of metier. This water station still partially exists under metier.
Remains of the DOOP Canal found under the trackbed
The remains of the canal as they are today
Opening of the DOOP Canal, November 2021