Guadeloupe Cable des Iles du Sud (GCIS)

Overview

The Guadeloupe Cable des Iles du Sud (GCIS) is an intra-territorial submarine cable system serving the archipelago of Guadeloupe, a French overseas region in the Caribbean. Spanning 118 kilometres, it connects multiple islands and coastal communities entirely within Guadeloupe, making it a short-haul domestic system rather than an international or intercontinental link.

Route and Landings

All five landing points of the GCIS are located within Guadeloupe. The cable reaches the communities of Beausejour, Capesterre-Belle-Eau, Saint-François, and Saint-Louis, as well as Terre-de-Haut, which lies on the island of Les Saintes. This configuration ties together geographically dispersed parts of the Guadeloupe archipelago through a single undersea cable network.

Ownership and Operators

The GCIS is owned by the Regional Council of Guadeloupe, the elected territorial authority responsible for regional development and public services across the archipelago. Public ownership of this system reflects its role as a territorial infrastructure initiative rather than a commercially driven venture.

Status and Timeline

The GCIS became ready for service in 2020 and has been operational for approximately six years. The cable currently serves its five landing points across the Guadeloupe archipelago.

Regional Context

Guadeloupe sits at the eastern edge of the Caribbean Sea and is served by several submarine cable systems. The cables landing in Guadeloupe have an average length of around 1,010 kilometres, which underscores how short the GCIS is relative to the wider regional picture. The three cables that share a presence in Guadeloupe — the Southern Caribbean Fiber (3,000 km, RFS 2006), the Eastern Caribbean Fiber System (1,730 km, RFS 1995), and the Global Caribbean Network (890 km, RFS 2006) — are all international systems connecting Guadeloupe to other Caribbean territories and beyond. The GCIS stands apart from these as a purely domestic system, the most recently commissioned cable landing in Guadeloupe, and by far the shortest at 118 kilometres.

Strategic Role

By connecting five distinct locations across the Guadeloupe archipelago, the GCIS provides dedicated undersea connectivity between island communities that are separated by open water. Its domestic scope and public ownership distinguish it from the international cables also landing in Guadeloupe, positioning it as a territorial network designed to serve the specific geographic needs of the archipelago's dispersed communities.