Major Rivers in Seychelles

Seychelles, an archipelago located in the Indian Ocean, is known for its pristine beaches, crystal-clear waters, and abundant marine life. Unlike many other countries, Seychelles is characterized by its small islands and rugged terrain, with most of the land being covered by tropical forests. The rivers of Seychelles are typically short, but they are important sources of freshwater for the islands. These rivers are essential for the local ecosystems, agriculture, and for sustaining the population.

The Mahé River

The Mahé River is the longest and one of the most important rivers in Seychelles, flowing through the largest and most populated island, Mahé. It is a vital water source for the island’s residents and supports both agriculture and biodiversity in the region.

Key Features of the Mahé River

  • Length: Approximately 4 kilometers (2.5 miles).
  • Provinces/Regions it passes through: The Mahé River flows through the central and southern regions of Mahé Island.
  • Source: The river originates in the central highlands of Mahé Island, near the Morne Seychellois National Park.
  • Mouth: It empties into the Indian Ocean near the southern coast of Mahé.
  • Tributaries: The Mahé River is fed by smaller streams that run through the surrounding hills.

Overview of the Mahé River

The Mahé River is crucial for supplying freshwater to the capital city of Victoria and the surrounding areas, which have a high population density. The river is important for agriculture, particularly for irrigation, as the island has limited freshwater resources. The river also provides water for the tourism sector, which is a significant contributor to Seychelles’ economy.

Ecologically, the Mahé River supports a range of aquatic life, with species of fish, invertebrates, and plants dependent on the river’s waters. The lush forest areas surrounding the river are part of the Morne Seychellois National Park, which provides habitat for various endemic species.

However, the river faces challenges such as water pollution from urban runoff, habitat destruction, and the impacts of climate change on rainfall patterns. Conservation and sustainable water management practices are essential for maintaining the river’s health.

The La Digue River

Located on the island of La Digue, one of Seychelles’ most famous islands, the La Digue River is one of the few rivers on this small island. While smaller than the rivers on Mahé, it plays a crucial role in supporting the local ecosystem and freshwater needs.

Key Features of the La Digue River

  • Length: Approximately 2 kilometers (1.2 miles).
  • Provinces/Regions it passes through: The La Digue River flows through the central parts of La Digue Island.
  • Source: The river originates from the higher elevations of La Digue, near the Grand Anse area.
  • Mouth: It empties into the Indian Ocean near the western side of the island.
  • Tributaries: The La Digue River is fed by several small streams and springs that drain the island’s hills.

Overview of the La Digue River

The La Digue River is a vital water source for the inhabitants of La Digue Island, which is home to a smaller population compared to Mahé. It provides freshwater for both domestic use and agriculture, although La Digue is less heavily cultivated compared to Mahé. The island is known for its lush vegetation, including coconut palms, and the river helps maintain this biodiversity by providing water to the various flora and fauna on the island.

The river also contributes to the island’s wildlife, supporting bird species and aquatic life, although its flow is much less than that of larger rivers. The La Digue River faces similar issues to other rivers in Seychelles, such as potential pollution from increased tourism and urbanization. Efforts to protect the island’s natural resources and manage water sustainably are essential.

The Anse Royale River

The Anse Royale River is located on the southeastern coast of Mahé Island and is a relatively small but important river in Seychelles. It flows through an area that is both ecologically sensitive and highly populated, making it essential for both human and environmental health.

Key Features of the Anse Royale River

  • Length: Approximately 3 kilometers (1.9 miles).
  • Provinces/Regions it passes through: The Anse Royale River flows through the southeastern part of Mahé Island, specifically the Anse Royale district.
  • Source: The river originates from the mountains near the southern coast of Mahé.
  • Mouth: It empties into the Indian Ocean at the popular Anse Royale beach.
  • Tributaries: The river is fed by smaller streams and tributaries that drain the surrounding hills.

Overview of the Anse Royale River

The Anse Royale River provides essential freshwater to the local community and supports agriculture in the area. It is vital for the region’s food production, especially for crops such as vegetables and fruit grown in the fertile soil around the river’s banks. In addition, the river helps maintain the lush forests and vegetation that surround it.

Ecologically, the river’s surrounding areas are home to a range of wildlife, including endemic species of birds and reptiles. The coastal area where the river meets the ocean is a vital habitat for marine life, including fish and crustaceans.

However, like other rivers in Seychelles, the Anse Royale River faces environmental challenges. These include pollution from residential runoff and threats from over-exploitation of the river’s water resources. The growing tourism industry and population growth in the Anse Royale area also add to the pressure on the river’s ecosystem. Sustainable water management and protection of the surrounding natural areas are critical for the river’s future health.

The Port Glaud River

The Port Glaud River is located on the western coast of Mahé Island, flowing through the district of Port Glaud. This river is an important part of the local landscape and provides essential water for both the natural environment and the human population living nearby.

Key Features of the Port Glaud River

  • Length: Approximately 2.5 kilometers (1.5 miles).
  • Provinces/Regions it passes through: The Port Glaud River flows through the western part of Mahé Island.
  • Source: The river originates from the upland areas near the Morne Seychellois National Park.
  • Mouth: It empties into the Indian Ocean near the Port Glaud bay.
  • Tributaries: The river is fed by several small streams from the hills surrounding it.

Overview of the Port Glaud River

The Port Glaud River serves as an essential freshwater source for the local community and agriculture in the region. It supports the agricultural activities of the area, including the cultivation of crops such as cassava, sweet potatoes, and bananas. The river’s water also helps sustain the local flora and fauna in the surrounding forested areas, which are part of the Morne Seychellois National Park.

Ecologically, the river plays a crucial role in supporting local wildlife, including bird species and aquatic life. The surrounding forests are rich in biodiversity, with many endemic plant species. The Port Glaud River also supports local fishing industries, as the estuarine areas where the river meets the sea are ideal for fish.

However, the river is at risk from pollution, particularly from urban development and agricultural runoff. The pressure from population growth and tourism in the area also threatens the river’s ecosystem. Conservation efforts are needed to preserve the river and ensure its sustainability for future generations.

The Grand Anse River

The Grand Anse River is located on the western coast of Mahé Island and is one of the island’s most scenic rivers, flowing through the district of Grand Anse. It plays a vital role in the local community, providing freshwater for domestic and agricultural use.

Key Features of the Grand Anse River

  • Length: Approximately 3 kilometers (1.9 miles).
  • Provinces/Regions it passes through: The Grand Anse River flows through the western part of Mahé Island.
  • Source: The river originates in the mountainous regions near the Morne Seychellois National Park.
  • Mouth: It empties into the Indian Ocean near Grand Anse Beach.
  • Tributaries: The Grand Anse River is fed by various smaller streams from the surrounding hills.

Overview of the Grand Anse River

The Grand Anse River is vital for the local agricultural economy, supporting the cultivation of crops such as coconuts, vegetables, and fruits. It provides irrigation for farmers in the area, ensuring that the fertile soils along its banks remain productive. The river is also important for the daily needs of the local population, supplying water for domestic consumption.

Ecologically, the river supports a diverse range of wildlife, including various bird species, reptiles, and aquatic organisms. The estuarine areas where the river meets the ocean are important for marine life, providing a habitat for fish and other marine species.

Like other rivers in Seychelles, the Grand Anse River faces pressures from pollution, particularly from residential and agricultural runoff. The development of the area, particularly as a tourist destination, has contributed to increased waste and pollution. Sustainable management practices are essential to ensure the river continues to support both human and ecological needs.

The Takamaka River

The Takamaka River is located in the southern part of Mahé Island. It is a smaller river compared to others but plays an important role in sustaining the local community and the surrounding environment.

Key Features of the Takamaka River

  • Length: Approximately 1.5 kilometers (0.9 miles).
  • Provinces/Regions it passes through: The Takamaka River flows through the southern part of Mahé Island.
  • Source: The river originates in the hills near the Takamaka area.
  • Mouth: It empties into the Indian Ocean near the Takamaka Bay.
  • Tributaries: The Takamaka River has a few smaller tributaries but is mainly a standalone stream.

Overview of the Takamaka River

The Takamaka River provides essential water for agriculture in the area, supporting the cultivation of crops such as yams, bananas, and root vegetables. The river also supports the local community, providing water for domestic use. The surrounding areas are rich in tropical vegetation, with a variety of plant species benefiting from the river’s flow.

Ecologically, the river is important for the local ecosystem, supporting a range of birds, insects, and small aquatic life. The Takamaka River is part of the natural beauty of the southern region of Mahé, attracting visitors who enjoy the natural landscape.

However, like many of Seychelles’ smaller rivers, the Takamaka River faces challenges such as pollution from agricultural activities and the growing pressure from tourism and urbanization. Conservation efforts are necessary to protect the river’s health and the surrounding environment.


Seychelles’ rivers, while small in comparison to those of larger continents, play a crucial role in maintaining the island nation’s biodiversity and supporting its agricultural and human populations. From the Mahé River to the Takamaka River, these waterways are vital for sustainable living, providing fresh water, supporting farming, and sustaining local ecosystems. However, as Seychelles faces pressures from population growth, tourism, and climate change, ensuring the health and sustainability of these rivers is increasingly important.

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