Montjoly Beach

Montjoly is the closest beach to Cayenne and arguably the most beautiful stretch of coast near the capital — an open Atlantic shore with dark volcanic sand, powerful surf and a backdrop of coastal vegetation that changes character depending on the season. The beach extends for several kilometres and is never crowded even on public holidays, which is remarkable for a piece of coast this close to a city of 60,000 people.

From September through December, the beach becomes a nesting site for leatherback sea turtles — the largest turtles on Earth, adults reaching 900 kilograms — that come ashore at night to lay their eggs in the dark sand. The Montjoly research station monitors nesting activity and runs evening awareness sessions during peak season, giving visitors a rare chance to observe one of the world's great marine wildlife spectacles from a respectful distance.

The beach is part of a coastal and marine protected area and supports a range of habitats: the sand flat itself, the strand vegetation, the coastal lagoon behind the beach, and the mangrove channels that thread inland. This diversity means the area supports an unusually wide range of birdlife for its size — from brown pelicans diving offshore to white-tailed tropicbirds over the dunes.

Swimming at Montjoly is possible but requires caution: the Atlantic surf can be strong and the currents unpredictable, particularly during the December to March period when swells are highest. Locals swim closer to the shore and around the rocky points at either end of the beach, and it is worth asking at the research station for current conditions before entering the water.

The salt flats behind the beach — salines — are particularly beautiful in the early morning and late afternoon, when the pink and white salt crusts reflect the sky and the silhouettes of the surrounding trees create an almost abstract composition. The Montjoly salines are one of the most photographed natural scenes in French Guiana, and for good reason.

Development pressure on the Montjoly coastline has been significant over the past two decades, with residential construction encroaching from the city side. The beach's continued natural character is increasingly a matter of concern for conservationists, and this is part of what makes the area worth visiting sooner rather than later — the window during which it retains its current character may be limited.

The beach also attracts local surfers when Atlantic swells are sufficient, particularly between November and March. The waves are not consistent or powerful enough for the international circuit, but they offer the only reasonable surfing opportunity in French Guiana and have a small loyal local following.

Montjoly combines accessible beach scenery with genuine ecological significance: sea turtle nesting, birdlife and coastal habitats within easy reach of Cayenne.

The salt flats are a unique visual landscape not found elsewhere in French Guiana near the capital.

The combination of beach, lagoon, mangrove and forest in one short walk makes Montjoly the most varied natural area within a short distance of Cayenne.