300-year-old Dutch shipwreck unearthed on Norderney beach during wind farm cable works

Discovery during cable works

In early July 2026, Amprion began laying sea cables for offshore wind farms on the North Sea island of Norderney. At the "Oase" beach section, workers unexpectedly hit wooden remains. The transmission system operator is building a connection that will carry electricity from wind parks in the North Sea to the onshore grid, with nearly 500 kilometres of submarine and underground cables stretching to Lingen in southern Emsland. According to Amprion, the cables will transport enough energy to supply a city the size of Hamburg. The discovery prompted a temporary halt at the find site, but the company said the overall construction schedule is not endangered.

The vessel

Archaeologists from the Ostfriesische Landschaft (East Frisian Landscape) examined the wreck and identified it as a nearly all-wood Dutch ship, probably dating to the 17th or 18th century. The vessel measures about 15 metres in length and 5 metres in width. Samples have been taken for dendrochronological analysis to pinpoint the exact age. The exposed parts, including a bow fragment, were recovered and transported away for documentation. Further sections are believed to remain buried in the sand and will be left in place.

A rare find for the region

Sonja König, head of the Archaeological Service of the Ostfriesische Landschaft, described the discovery as particularly exciting because few wrecks from this period have been found and documented along the Lower Saxony coast.

This find is particularly exciting because only a few wrecks from this period have been found and documented on the coast of Lower Saxony so far.

The rarity gives the wreck cultural-historical weight beyond a local curiosity. Experts hope the well-preserved wooden structure will shed light on Dutch shipbuilding techniques of the era, a field with limited physical evidence from this stretch of the North Sea coast.

The cable project and the island

Norderney is one of the East Frisian Islands, a dune island of 26.31 square kilometres and the second largest in the chain after Borkum. Amprion's offshore grid connection project will link multiple wind farms to the mainland, with the cable route crossing the island. The nearly 500-kilometre cable system is designed to transport renewable electricity at a scale comparable to the demand of a major city, the company states on its project page.

Next steps

The archaeological team is developing a concept for recovering the already exposed wreck parts while leaving the remainder undisturbed in the ground. Amprion emphasised that protection of the find has priority, and construction work at the discovery site remains paused. The company added that the interruption will not jeopardise the project timeline. The recovered timbers will undergo comprehensive documentation and conservation, adding to the sparse record of early modern shipwrecks in the region.