Published to YouTube on June 12, 2019 by Chami Shaw.
Here is an English translation of the description included: An aboiteau is a kind of dyke built by the Acadians to allow them to cultivate land gained from the sea or the rivers. The principle is not only to prevent the sea from invading the land at high tide, but also to evacuate runoff from rain and snowmelt at low tide. Thus, the recovered lands are gradually freed of their salt content. That is why the Acadians surrounded their land with dikes that channeled the water and brought it to the evacuation duct, which was equipped with a movable flap that automatically closes at high tide and opens at low tide.