Trou de Fer Waterfall — France
A volcanic abyss on Réunion where waterfalls plunge hundreds of metres into a mist-shrouded canyon of black basalt — one of the Indian Ocean's most dramatic natural sights.
About this spectacle
Trou de Fer — literally 'Iron Hole' — is one of Réunion's most dramatic natural spectacles: a near-vertical canyon where multiple waterfalls plunge hundreds of metres into a mist-filled abyss of dark volcanic basalt. Visitors typically reach the viewpoint after a trek through dense tropical forest draped in ferns and orchids, emerging suddenly at the canyon rim to a view that stops the breath. The roar of falling water fills the air, and on sunny mornings clouds of spray catch the light, creating fleeting rainbows in the gorge below. The lush vegetation, layered cliffs, and constant mist give the scene an otherworldly atmosphere. Because Réunion's interior receives heavy rainfall, the waterfalls are most powerful after rain. The remoteness keeps visitor numbers low, making this feel like a private encounter with raw volcanic landscape. It rewards those willing to walk for it with one of the Indian Ocean's most spectacular canyon panoramas.
When to go
Jan — Dec, peak Jun — Sep
Getting there
Nearest airport: RUN. Nearest city: Saint-Denis.
Booking options
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