Guided tour of the 2004 lava tunnels

Overview

Available languages

English

French

2 hours 30 minutes

Mobile ticket

The lava tunnels in Reunion are becoming an essential activity on the island. There are very few places in the world where it is possible to have such an experience. During this underground exploration you will discover a universe worthy of Jules Vernes. The Piton de la Fournaise offers us this opportunity. The instructors who will supervise you will be happy to explain to you how these famous lava tunnels form and will share with you their passion for volcanology through this "volcanic speleology".

Additional Info

Not recommended for pregnant travelers

Not recommended for travelers with poor cardiovascular health

Travelers should have at least a moderate level of physical fitness

Cancellation Policy

For a full refund, cancel at least 24 hours before the scheduled departure time.

What‘s Included

All safety and comfort equipment will be distributed to you. helmets, gloves, knee pads and headlamps.

Personal clothing required: long pants, T-shirt (no tank top), hiking or basketball shoes, small backpack, water bottle, camera, change of clothes. Rain suit.

What To Expect

Once equipped with a helmet, an individual headlamp, knee pads and gloves, you will walk for 15 minutes on the lava ropes to reach the entrance of the tunnel. During this short approach walk your instructor will give you a description of the landscape around you. After the first explanations given by your guide, the time that your sight is done in the dark, you will discover a unique universe. Ceilings from which melting dark chocolate seems to flow (stalactites), benches of lava, forests of stalagmites, a "dodo", a "shark" ... And much more if you let your imagination run wild. It is a unique journey that we offer you. Very often standing, sometimes bent, from time to time squatting you will progress slowly, at your own pace. After 2 h 00, you will leave this environment of anthracite gray, brown, red and black while having another look at the Piton de la Fournaise.

Options

Guided tour of the 2004 lava tunnels

Reviews

5.00

330 reviews

Total reviews and rating from Viator & Tripadvisor

329

Adventurous learning
341anef,
Nov 30, 2025
- Review from Tripadvisor
5.00
A very enjoyable, exciting way to learn more about Réunions history as a volcanic island. Fred enthusiastically shared his knowledge with patience and humuor, making this a fun adventure. He also made sure to balance the French/English translation well in a group where everyone else was French. Highly recommended!!
The beautiful team
838c linev,
Nov 27, 2025
- Review from Tripadvisor
5.00
Ludo and Fred are a very professional and humorous pair... We had a great time with them, during the visit of the lava tunnels 👍
Unusual and very interesting activity.
01monia,
Nov 17, 2025
- Review from Tripadvisor
5.00
Very interesting discovery of this famous lava tunnel, with family. Our guide, Fred, with a lot of humor, shared his knowledge about volcanoes, various rocks and volcanic formations. Exciting! Thank you for the helmets, knee pads and gloves, because we crap for two hours, to the delight of all, from 9 to 69 years! It was quite an experience, which we highly recommend! Thank you for this unusual activity.
Visit not to be missed!
AlecZander83,
Nov 17, 2025
- Review from Tripadvisor
5.00
Great experience! Visit the lava tunnels punctuated by the enriching explanations and humor of our guide. Thank you Fred, we had a great time.
Visit Tip top
Soizine,
Nov 16, 2025
- Review from Tripadvisor
5.00
Superb visit of the Lava Tunnel with Ludovic who made us live this place well. It’s impressive, beautiful and so well told. 5 ⭐️ Thank you - Les Bordeauxais
Passionate and exciting guide
audreyi382,
Nov 16, 2025
- Review from Tripadvisor
5.00
Fred is absolutely passionate and exciting; we had a great morning and didn’t see the time pass!
Very nice experience
catherinecY6657DQ,
Nov 16, 2025
- Review from Tripadvisor
5.00
We were delighted with this great experience with 2 great guides who combine experience, passion for nature and humor. Bravo, keep... Unusual visit to make absolutely... Thanks again to Fred and Ludo. Catherine, David, Antoine and Edward
An exciting discovery.
815veroniquea,
Nov 9, 2025
- Review from Tripadvisor
5.00
An exciting and extraordinary visit! Accessible to caving neophytes.A big thank you to our guide for his humor and kindness.
Just great!
532theodorad,
Nov 5, 2025
- Review from Tripadvisor
5.00
Great hike with Fred in the lava tunnels! It is a real wealth of information, a passionate person who knows how to transmit his enthusiasm. A true expert in his field. We learned, discovered and laughed. An experience absolutely recommended! Thanks for everything and see you next time.
A new and beautiful show
macao1986,
Nov 2, 2025
- Review from Tripadvisor
5.00
Recommended by Marion travel circle really not to be missed It’s really impressive to see and do I thank Frédéric our guide who guided us throughout the visit a great professional It is really a very nice excursion