S4 - The river of salmons
From A Pontenova, the racers will start the first section of kayak, in which they must descend along the Eo river, famous for its good characteristics so that the salmons can go up and look for good breeding areas.
The teams won't be allowed to start the first part of the river descent during the night hours (between 20:00 and 7:15), so that teams who are in this situation will have to start this section with a trekking to the village of El Llano. The organization will move their kayaks to this location and these teams will be penalized with one hour that will be added to the team's total time in the race.
From El Llano, the teams will be able to use the kayaks at any time of the day or the night until the Castropol village, located practically in the river mouth in the Cantabrian Sea.