Gan Causeway

The Gan Causeway runs straight and level across the shallow lagoon between Gan and Maarandhoo, the two largest islands in Addu Atoll, and from the road the view is unlike anything the central Maldives offers. On either side the water is shallow and pale turquoise, dotted with the dark shapes of coral heads, and herons stand motionless in the shallows hunting for small fish disturbed by the tidal flow. The causeway itself is a solid surface of compacted coral rubble, wide enough for a single vehicle, and the islands it connects are notably larger and more heavily vegetated than the low scrub islands of the central atolls.

Addu Atoll is geographically distinct from the rest of the Maldives: it lies at the southern end of the island chain, closer to the equator and more influenced by the Indian Ocean's currents, and its islands have a lusher, greener character shaped by slightly higher rainfall. The landscape around the causeway reflects this: the vegetation on both Gan and Maarandhoo includes dense coconut palm stands and broad-leaved tropical growth that is visibly different from the sparse, wind-pruned vegetation of the exposed northern islands.

The British naval base on Gan operated from 1940 to 1976, and the infrastructure it left behind is visible throughout the southern islands. The most obvious legacy is the causeway itself, but there are also disused military facilities scattered through the vegetation: concrete bunkers, magazine stores and the abandoned runway at the former RAF Gan, which was a significant Cold War strategic asset and the home of a US Naval Air Facility until 1996. These structures have been largely absorbed into the landscape rather than demolished, and their decay has given them an意外 character that contrasts sharply with the immaculate resort islands of the central Maldives.

What makes the Gan Causeway particularly interesting for a visitor is the way it functions as a viewpoint: standing on the causeway, you can see both islands and the lagoon on all sides, and the scale of the atoll's interior spaces becomes apparent in a way that is not possible from within a single island. The lagoon channels between the islands are deep enough for boat passage, and the tidal flow through these channels creates the current patterns that keep the lagoon water clear and well-oxygenated, sustaining the coral growth that in turn supports the fish populations on which the local economy depends.

The causeway is also notable for what it reveals about the relationship between infrastructure and identity in the Maldives. The country is more geographically fragmented than its resort-island image suggests, and the physical connections between islands have always been crucial to the coherence of Maldivian society. The Gan Causeway is unusual in that it creates a permanent, physical link between two separate islands, effectively merging their daily economies and social networks. The islands of Gan and Maarandhoo now function almost as a single community, with residents moving freely between them on foot or by bicycle along the causeway. This integration has had practical consequences: shared schools, shared markets and a combined population that is large enough to sustain the small local businesses that would not be viable on either island alone. The causeway is thus not only a historical artefact but a living piece of social infrastructure that continues to shape how people in the southern Maldives organise their daily lives.

The most accessible legacy of the British naval period (1940-1976) in Addu Atoll, offering a tangible connection to the Maldives' twentieth-century geopolitical history.

The causeway and surrounding islands present a landscape distinctly different from the central Maldivian resort islands: larger, greener and more rural in character.

The causeway offers a clear vantage point across the lagoon, revealing the spatial structure of Addu Atoll in a way that is not possible from within a single island.