Goheung, South Korea

Goheung: Submarine Cable Landing Point

Goheung is a coastal locality in South Korea that serves as a submarine cable landing point. One submarine cable lands here, connecting Goheung to the domestic submarine cable network that links the Korean mainland with its offshore islands. The cable landing at Goheung supports an inter-island or intra-national corridor rather than an intercontinental one, reflecting its role in South Korea's internal connectivity infrastructure.

South Korea as a whole hosts 14 submarine cables across 10 landing points, making it a well-connected country in the Asia-Pacific submarine cable landscape. Goheung contributes to this national network through its single cable landing, which ties the location into the broader domestic system.

Cables Landing at Goheung

Jeju-Mainland 2 is the sole submarine cable landing at Goheung. The cable has a total length of 191 kilometres and reached ready-for-service status in 1996, placing it among the earlier submarine cable deployments in South Korea — the country's first cable also dates to 1996. As its name indicates, Jeju-Mainland 2 connects the South Korean mainland with Jeju Island, an intra-national route entirely within South Korean waters. The cable is noted as a draft entry in the record. No additional technical specifications such as capacity or fiber pairs are recorded for this cable.

Regional Context

Among South Korea's 10 submarine cable landing points, Goheung sits alongside several other single-cable localities including Geoje, Gunsan, Hosan-ri, and Mijo-myeon, each of which also hosts one cable. Goseong-ri supports three cables, while Busan stands apart as the dominant hub in South Korea with eight cable landings. Goheung's position is therefore consistent with a set of smaller, functionally specific landing points that serve defined domestic or regional routes rather than acting as major international gateways.

Network Role

Goheung functions as a single-cable terminus, anchoring one end of the Jeju-Mainland 2 connection on the South Korean mainland. This positions the landing point as part of the infrastructure that maintains submarine-based connectivity between mainland South Korea and Jeju Island, a route served by a cable that has been operational since 1996. The landing point does not serve intercontinental traffic based on the available cable inventory.

In the broader South Korean submarine cable graph, Goheung represents one of several mainland anchor points for domestic island connectivity, complementing the international-facing capacity concentrated at larger hubs such as Busan. Its presence as a dedicated domestic landing point illustrates how national submarine cable networks often distribute connectivity responsibilities across multiple coastal sites rather than consolidating all traffic at a single location.