Divers plunged into Lake Neuchâtel, and deep below, they stumbled uponmore than 1,000 Roman objects from a cargo dating between 20 and 50 AD. The discovery was kept quiet at first to avoid looting, but it is now giving a rare look at how goods moved during the early Roman Empire.
It all started with drone footage showing a dark patch under the water, which had become clearer in recent years. That detail caught the attention of the Octopus Foundation, and divers were sent down to take a closer look. Instead of a visible shipwreck, they found a compact pile of objects sitting on the lakebed.
What stands out right away is how well everything in the lake has been preserved. Even traces of food were found inside some ceramic containers, and these were studied to better understand what people were eating at the time.
A Cautious Start That Changed Quickly
At first, the divers were not even sure what they were looking at. Fabien Langenegger and Julien Pfyffer approached the site carefully, thinking it might be something dangerous like old World War II explosives. As stated in a report published byOctopus Foundation, it was only when they turned on their lights that the color of terracotta became clear.
“At first, we both cautiously approached this pile of circles, which could have been a depot of mines left behind from the Second World War,” Pfyffer said. “But when I switched on my camera light, the characteristic colour of terracotta emerged. Looking at some broken plates, we realised that this find was extraordinary.”
Broken plates made it obvious they were dealing with something much older.
“We remained rooted to the spot,” he added, describing how they paused when the importance of the find sank in.
Excavations followed in two phases, one in 2025 and another in 2026. In total, more than 1,000 objects were recovered, including plates, bowls, and storage containers, manystill intactdespite their age.
A Shipment Likely Meant For Roman Troops
The layout of the objects suggests this was a planned shipment. Archaeologists think the cargo consisted of kitchenware produced in Switzerland and was heading to a nearby Roman camp. One crate has been dated to 17 AD, which helps fix the timeline.
There were also items linked to soldiers mixed in with the ceramics. These included two swords, a dagger, a fibula, and belt buckle. According to the same statement, this points to legionnaires escorting the shipment.
The size of the cargo is another clue. Researchers believe it could have been intended for around 6,000 men, about the size of a Roman legion. The ship itself, though, has still not been located.
A Lake Discovery Still Being Unraveled
One of the most surprising finds is a wicker basket that survived thanks to the lake’s conditions. Inside were six ceramic objects that look different from the rest, possibly belonging to the crew rather than the cargo itself. Organic materials like wicker rarely last this long, which makes this part of the discovery especially interesting. As pointed out by the team, the lake’s conditions helped preserve it.
All the objects have now been brought up to avoid damage from anchors, fishing nets, or theft. As reported by Euronews, they are being cleaned and studied, which should reveal details that were hard to see underwater, such as maker’s marks or traces of how the items were originally packed.
“These artifacts, of inestimable historical value, are now exposed to the lake’s currents and potential looters. It was therefore decided to quickly conduct excavations to secure and stabilize these pieces, making them accessible to the public,” the authors said.
The Octopus Foundation plans to release a book and a documentary in 2027, and an exhibition is expected at the Laténium Museum in Neuchâtel.
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