Rivers and Streams of Mauritius

Mauritius is characterized by a diverse network of rivers that play a crucial role in its ecological and water management systems. The rivers in Mauritius are primarily short and steep due to the island's volcanic origin and small size, with none extending more than a few dozen kilometers.

Notable Rivers include:

1. Grand River South East (GRSE) is the longest river on the island is notable for its scenic waterfalls, especially near its mouth, which is a popular spot for tourist excursions.
2. Grand River North West (GRNW) is also a significant river in Mauritius, contributing to the island’s water resources and ecosystem. It plays a role in the local water management system, accommodates the A.I.Atchia (Ex Reduit) Hydro Power Station, and supports various ecological and recreational activities.
3. Originating from the central highlands, Black River flows through the Black River Gorges National Park, one of the last rainforests of Mauritius, providing critical habitat for native species.

Environmental Challenges and Management

The rivers face environmental challenges such as pollution, especially from agricultural runoff and industrial waste, and the impacts of climate change, including altered rainfall patterns and cyclones, which affect river flow and health. Efforts are ongoing to manage these issues through improved water management practices, reforestation projects around riverbanks, and stricter pollution control measures to preserve these vital waterways for future generations.

Importance of Rivers in Mauritius

Mauritius’s rivers are not only crucial for the island’s water supply, including drinking water and irrigation, but also support diverse ecosystems. They are central to leisure activities such as kayaking and river trekking. Additionally, many rivers are integral to the island's efforts in hydroelectric power generation.

+ see also Water Uses from Rivers

Source: Digest, Environment (2022) Table 12