Guanyin Mountain, China

Guanyin Mountain, China: Submarine Cable Landing Point

Guanyin Mountain is a submarine cable landing point located in China, contributing to the country's broader network of coastal cable infrastructure. A single submarine cable makes landfall here: the Cross-Straits Cable Network (CSCN). As the name of that cable indicates, the connection it provides is a short cross-strait link, running between mainland China and Taiwan across one of the most geographically and commercially significant narrow sea passages in East Asia.

With a cable length of just 21 km, the CSCN is a short-haul, inter-territory connection rather than a long-distance intercontinental link. This places Guanyin Mountain in a distinct category among Chinese landing points, serving a tightly defined corridor between two cable endpoints rather than acting as a gateway to global long-distance routes.

Cables Landing at Guanyin Mountain

Cross-Straits Cable Network (CSCN) — The CSCN reached ready-for-service (RFS) status in 2012 and is listed with a draft designation, indicating its status as a shorter, regionally focused link. At 21 km in length, it is among the shortest submarine cables in the region. The cable connects landing points in mainland China and Taiwan, forming a direct undersea path across the Taiwan Strait. Guanyin Mountain on the mainland Chinese side serves as one terminus of this bilateral connection.

Regional Context

Among China's 24 submarine cable landing points, Guanyin Mountain hosts a single cable, placing it in the lower tier by cable count compared to major hubs such as Chung Hom Kok and Tseung Kwan O, each of which serves six cables, or Chongming and Nanhui, each serving four. It is comparable in scale to other single- or dual-cable landing points that serve specific, targeted connectivity corridors rather than broad intercontinental aggregation. Guanyin Mountain's role is narrow in scope but well-defined by the geographic reach of the CSCN.

Network Role

Guanyin Mountain functions as a single-cable terminus, anchoring one end of the Cross-Straits Cable Network on mainland China. The cable it hosts creates a direct undersea link to Taiwan, a short but meaningful connection across the Taiwan Strait. Rather than aggregating multiple international routes, Guanyin Mountain serves a point-to-point role in the submarine cable graph, providing dedicated capacity on this specific inter-territory corridor.

In the broader context of China's submarine cable infrastructure — where 24 cables land across 24 landing points, with an average cable length of over 10,000 km — Guanyin Mountain stands apart as the terminus of one of the shortest cables in the national network. Its significance lies precisely in that short distance: the 21 km of the CSCN represents a direct physical link between two of the most closely connected yet geographically distinct cable territories in East Asia.