Mataiva Lagoon

The Mataiva Lagoon is situated in the northwestern region of the Tuamotu Archipelago in French Polynesia. It surrounds a small coral atoll of the same name, located roughly 300 kilometers northeast of Tahiti. It is geographically distinct due to its rare, complex internal structure.

Unlike typical circular atoll lagoons, Mataiva's interior is scientifically remarkable for containing a dense network of approximately 70 deep, natural sinkholes. These sinkholes, known locally as 'pools,' divide the shallow lagoon floor into a mosaic of reticulated coral reticulations. This topography makes it one of the most geologically distinct lagoons in the entire Pacific Ocean.

Yes, the raised coral reefs on the landmass of Mataiva hold significant, highly concentrated deposits of phosphate. In the late 1980s, plans were drawn up to establish a massive mining operation to extract these valuable phosphates. However, fierce opposition from local residents and environmentalists successfully halted the project, preserving the atoll's ecosystem.

While Mataiva is incredibly beautiful and remote, tourism is highly limited due to its isolated location within the Tuamotu Archipelago. There are a few small, family-run pensions on the atoll that host a small number of ecotourists and divers each year. The local economy is almost entirely dependent on copra farming and vanilla cultivation, rather than mass tourism.