Mauritius: Black River Gorges Hike & Fruit Bat Valley Swim

Summary

Hike wild trails in Mauritius, see fruit bats & swim in cool rivers

You’ll hike deep into Mauritius’ Black River Gorges with a local guide, spot thousands of fruit bats at Mare aux Joncs Gorge, and take in sweeping views from 400 meters up before cooling off with a river swim. Expect muddy boots, honest laughs, and those little moments you’ll remember long after you leave.

What’s the experience like?

"That’s the sound of the fruit bats," our guide grinned, pausing mid-step as a soft rustle echoed above us. We’d just entered Black River Gorges, and already my shirt was sticking to my back—the air here is thick and green, almost sweet. The path started gentle but turned steep quick, roots grabbing at my boots. I kept stopping to catch my breath or watch tiny lizards dart across sunlit rocks. At one point, I swear I smelled something like crushed guava mixed with damp earth. Maybe it was just me being hungry.

Halfway up, we reached Mare aux Joncs Gorge—locals call it Bats Valley for good reason. Thousands of Mauritian fruit bats hung from branches like little umbrellas, flapping and shifting whenever a breeze came through. Our guide (I think his name was Arvind?) told us they’re harmless and actually kind of cute once you get used to their faces. He laughed when I tried to say their name in Creole—probably butchered it. The view from there was wild: green rolling out forever, clouds snagged on distant peaks.

We finally hit the top—400 meters up—and everything opened wide. You could see the West Coast shimmering way below: blue lagoons, tiny villages tucked into folds of hills. It’s hard to describe that feeling… like you’re standing right inside someone’s secret postcard. Coming down was easier but my knees complained (should’ve stretched more). Near the end, Arvind led us off-trail for a swim in the river—cold enough to make you gasp but honestly perfect after all that sweat. I still think about how quiet it felt there except for water and birds arguing somewhere overhead.

Step-by-step itinerary

Day 1 — Hike and swim in Black River Gorges

• Start hike in Black River Gorges Park
• Discover viewpoints of park and surroundings
• Visit Mare aux Joncs Gorge (Bats Valley)
• Reach 400m summit with west coast views
• Descend to river for a swim
• Return to park parking lot

Top questions

How long is the hike in Black River Gorges?

The exact distance varies but expect several hours on foot with moderate climbs and descents.

Can children join this hike?

Children under 10 years old are not permitted; babies in carriers are also not allowed.

Is swimming included during the tour?

Yes, there’s a stop for swimming in the river near the end of the hike.

Are there any health restrictions?

This hike isn’t recommended for pregnant travelers or those with spinal or cardiovascular issues.

Do I need to arrange transportation?

No hotel pickup is mentioned but public transportation options are available nearby.

Will we see wildlife during the hike?

You’ll likely spot Mauritian fruit bats and possibly other endemic species along the trail.

Is lunch provided on this tour?

No lunch is included; only entry fees and taxes are covered.

What’s included

Your day covers all entry fees and taxes for Black River Gorges National Park. A local guide leads you through native forest trails to viewpoints and down to the river for a refreshing swim before returning by foot to your starting point.