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Experience - La Réunion

Lava Tunnel Expedition


  • Experience geology up close for unforgettable memories

  • Hiking through an underground lava tunnel

  • Explore the pathways beneath the lava field, Le Grand Brûlé

  • High-quality equipment for your safety

  • Safe and informative with a professional guide


Embark on this journey and explore the lava tunnel of the active volcano, Piton de la Fournaise. This extraordinary adventure only exists until the next volcanic eruption.


Indian Ocean

  1. La Réunion
  2. La Réunion East Coast
  3. La Réunion South Coast

Experience geology from an entirely new perspective during this unique adventure!

Accompanied by an experienced tour guide, step into the extraordinary world of the natural lava tunnel. It winds its way beneath the Le Grand Brûlé lava field. After the last eruption in 2004, these famous underground pathways formed. After two years of cooling off, visitors can now walk its 4-kilometer-long tunnels!

Through the different natural formations, an array of structures shaped into a tunnel. Some of its walls are smooth as glass, and others have extraordinary appearances formed by minerals. Your guide will share fascinating information about its geological features.

For this excursion, you should have the right balance on uneven surfaces. You should also not have claustrophobia because the diameter of the tunnel varies between 1 and 3 meters. In some places, you must climb over obstacles or crawl through narrow passages. High-quality and modern equipment such as headlamps, helmets, etc. make the tunnel hikes an unforgettable and safe experience.

Date of the trip: Daily in the morning or afternoon, approx. 2 - 3 hours


  • 2-3 hour half-day tour of the lava tunnel on La Réunion

  • Accompanied by an experienced and local guide

  • Equipment


  • Transfer from/to your booked hotel

  • Meals

  • Tips

  • Personal expenses

Services & Notes

  • Time: 8:30 AM and 1:30 PM
  • Meeting point: Parking de la Vierge au Parasol, Sainte-Rose 97400, Ile de La Réunion
  • Minimum number of participants: 2 people

Please bring the following items with you:

  • Camera

  • Approx. 1 L water

  • Sport shoes

  • Extra shirt, if necessary

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