Kökar, Finland

How the Internet Reaches Kökar, Finland

Kökar is a small island municipality in the Åland archipelago, situated in the Baltic Sea between mainland Finland and Sweden. Its geographic isolation means international internet connectivity depends entirely on submarine cable infrastructure threading through these Baltic waters. For Kökar, that connection is provided by a single submarine cable linking it directly into Finland's national and international internet network.

International traffic reaches Kökar through the Eastern Light Sweden-Finland II cable, a planned system with a ready-for-service date of 2027. This cable connects Kökar to other landing points along the Finnish coast and across to Sweden, placing this remote island community on a direct submarine cable route across the Baltic.

The Cable Serving Kökar

The Eastern Light Sweden-Finland II cable is scheduled to enter service in 2027 and connects Kökar to Espoo, Hanko, and Kista in Sweden. The cable links Finland and Sweden across the Baltic Sea, with Kökar serving as one of four landing points on the system. Traffic from Kökar can therefore reach the Finnish mainland via the Espoo and Hanko landing points, as well as Kista in Sweden, making this a regional Baltic route rather than a long-haul intercontinental system.

Regional Context

Finland hosts 12 submarine cables across 11 landing points, with an average cable length of 275 km and the country's first submarine cable in service since 1994. Within that national picture, Kökar is one of the smaller terminuses, served by a single cable compared to the much larger hubs elsewhere in the country. Hanko, for instance, connects to six submarine cables, Helsinki to five, and Espoo to four. Kökar's position as a single-cable landing point reflects its role as an island terminus rather than a major national routing hub. Notably, Hanko and Espoo are also landing points on the same Eastern Light Sweden-Finland II cable, placing Kökar within a shared regional corridor.

What This Means for Connectivity

With only one submarine cable serving Kökar, all international and mainland-bound traffic flows through the Eastern Light Sweden-Finland II system. An outage on this cable would sever the island's submarine-based external connectivity entirely, with no alternative submarine route available. Once in service in 2027, the cable will provide Kökar with a direct link to mainland Finland via Espoo and Hanko, and onward to Sweden via Kista — covering both intra-Finnish island connectivity and cross-Baltic routing in a single system.

Understanding Kökar's position as a single-cable, single-route terminus highlights a broader pattern in archipelago connectivity: remote island communities frequently depend on a sole submarine link, making the resilience of that individual cable system the defining factor in their internet reliability. Kökar's inclusion on the Eastern Light Sweden-Finland II route illustrates how even small Baltic island communities are being drawn into expanding regional submarine cable infrastructure.