GRSE Waterfall Mauritius

The Grande Rivière Sud-Est, or GRSE, is the longest river in Mauritius. Where it empties into the Indian Ocean on the east coast, it creates one of the island's most dramatic natural sights: the GRSE waterfall. The water drops through tropical vegetation, surrounded by cliffs, wild monkeys, and giant fruit bats. And because there are no roads to the river mouth, the only way to experience it is by boat.

Why the GRSE waterfall is only reachable by boat

The waterfall sits inside a wild coastal strip between the river and the sea. There are no hiking trails, viewing platforms, or roads nearby. The local landscape is dense tropical forest and mangrove, which is why every legitimate GRSE waterfall experience is part of an east-coast boat tour from Trou d'Eau Douce.

What to expect at the waterfall stop

• Your skipper slows the boat and drifts toward the river mouth so you can photograph the falls up close.
• Look into the trees for wild monkeys and giant fruit bats resting in the branches.
• The stop lasts 15–30 minutes depending on currents and other boats.
• Passengers stay on board for safety; the water near the falls is too shallow and rocky to disembark.

Combine the waterfall with Ile aux Cerfs

The GRSE waterfall is usually the first highlight of a full-day east-coast tour. After the waterfall, boats continue to snorkeling sites and then to Ile aux Cerfs for beach time and a BBQ lunch. This combination is why the Ile aux Cerfs catamaran cruise and speedboat tour are the most popular day trips in Mauritius.

See the waterfall on a full-day tour

Every east-coast tour we run includes the GRSE waterfall, snorkeling, and free time on Ile aux Cerfs.