On the third day of the fieldschool at Tollense it was quite warm, around 30 degrees Celsius. This day, the underwater research team was responsible for the underwater site, with the primary focus on the dugout. First, the dugout was cleared of all the waterplants so it could be documented accordingly. The first task of the day was to record new video footage of the dugout to process for photogrammetry. After the footage was taken, the dugout was measured by two divers using snorkels. These measurements were done as another method to record and document the dugout, as the visibility for photogrammetry was not optimal. Once the measurements were taken with two tape measures and written on the slate, the dugout could be drawn on dry land.

Meanwhile, other divers investigated the area around the dugout. An interesting find of weaved reeds was found, possibly a basket or rats nest. Other finds in that area consisted of bone fragments and different species of nuts. Downstream in the riverbed there were even more finds, mostly bone fragments. However, these were not in context. This means that the placements of these finds are not in their original place, as they could have been moved by the current, weather or anthropological activities.

On the fourth day, the weather again was incredibly hot. We started using the dredge which is like an underwater vacuum cleaner. After only a few minutes, we noticed that the pump and engine started to smell funny, so we stopped dredging to investigate. It turned out that the engine was broken, so the dredging was put on hold until a new pump could be installed on the site. In the meantime, students investigated the riverbed, to see if there were any more finds on the surface, while other students kept clearing the dugout with their hands. At the end of the day, a new pump arrived, so the dredging could be continued.