Tejn, Denmark

Tejn, Denmark: Submarine Cable Landing Point

Tejn is a harbour town on the north-eastern coast of Bornholm, a Danish island in the Baltic Sea. As a landing point for submarine cable infrastructure, Tejn connects Bornholm to the broader regional cable network spanning the southern Baltic. One submarine cable currently lands at Tejn, the Aurora cable, linking Denmark, Germany, and Sweden across this geographically compact but strategically positioned corridor.

The Aurora cable, with endpoints in Denmark, Germany, and Sweden, positions Tejn as part of a regional Baltic connectivity route. Given Bornholm's island geography, submarine cable connectivity is the natural means of linking the island to mainland European networks, and the Aurora cable serves precisely this function within a short but important intra-regional corridor.

Cables Landing at Tejn

Aurora is a submarine cable with a total length of approximately 500 km, with a ready-for-service (RFS) date of 2024 (draft status). The cable connects Denmark, Germany, and Sweden, forming a triangular regional route across Baltic waters. Tejn on the island of Bornholm serves as one of the Danish landing points for this cable, integrating the island into a network that spans three neighbouring Baltic nations.

Regional Context

Among Danish submarine cable landing points, Tejn currently hosts one cable, placing it at a more modest scale compared to peers such as Gedser, which serves three cables, and a number of other Danish locations including Blaabjerg, Brondby, Laeso, Lyngsa, and Rønne, each of which host two cables. Tejn's single-cable status reflects its character as a smaller, island-based landing point rather than a high-density hub. Rønne, also located on Bornholm, represents the island's other landing point and similarly connects the island to regional cable infrastructure.

Network Role

Tejn functions as a single-cable terminus, with the Aurora cable providing Bornholm's north-eastern coast with a direct submarine link to Germany and Sweden. The 500 km Aurora cable creates a regional Baltic triangle, ensuring that Tejn participates in a short-haul interconnection network rather than a long-distance intercontinental route. This regional focus is consistent with Bornholm's geographic position as an island requiring dedicated submarine infrastructure to maintain connectivity with its nearest continental neighbours.

Within the Danish submarine cable graph, Tejn represents one of two known landing points on Bornholm, the other being Rønne, together forming the island's submarine cable footprint. The presence of Aurora as a 2024-era cable reflects continued investment in Baltic regional connectivity, reinforcing Bornholm's integration into the broader northern European cable network.