Trou d'Eau tunnel

A venue designed for hosting special events: team-building activities, summer camps, birthday parties…

With its impressive dimensions and the presence of an underground river, this tunnel provides the perfect setting for recreational and sporting activities in an unusual yet easily accessible location.

Abseiling, zip-lining, swimming… there’s a wide range of activities to choose from.

Package options and prices available on request.

Book your exploration

Important information

Medical contraindications : reduced mobility, pregnancy, heart or respiratory problems
Equipment supplied Helmet, headlamp, gloves, kneepads (harness depending on the cave)
What to expect Closed shoes, worn long trousers, t-shirt (ideally long-sleeved and worn), small bag (rain jacket, sun cream, mosquito repellent, water, snacks), change of clothes.

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Testimonials

★★★★★

"Great experience"

Great experience with Alex at the Blue Basin lava tunnel! Small group experience. He doesn't count his time and is passionate about what he...

Céline Demory

★★★★★

"Great experience"

Great experience with Alex at the Blue Basin lava tunnel! Small group experience. He's passionate about what he does and takes the time to explain everything and answer any questions. We'll be back with great pleasure! As an added bonus, we left with a photo report.

Céline Demory

★★★★★

"I recommend"

We did the Bassin Bleu tunnel tour. It was a great experience for the whole family, a change from the usual routes and a better understanding of the...

Margot George Coconier

★★★★★

"I recommend"

We did the Bassin Bleu tunnel trail. It was a great experience for the whole family, making a change from the usual tours and giving us a better understanding of the formation of the lava tunnels and their current ecosystem. Alex is a super, passionate guide who takes the time to explain things properly and to talk to the whole group. I can't recommend this experience enough!

Margot George Coconier

★★★★★

"Great experience"

A great, unique, unbelievable and unusual experience on Reunion Island, not to be missed: exploring the lava tunnels with Alex. Alex...

Emilyz TravelandFilm

★★★★★

"Great experience"

A great, unique, incredible and unusual experience not to be missed on Réunion Island: exploring the lava tunnels with Alex. Alex is a passionate caving guide who gave us an extraordinary immersive experience in a small group without the crowds. It was a truly timeless experience. I had two experiences with him: the coulée 2004 tunnels at Grand Brûlé and the bassin Bleu tunnel at l'Eperon, two very different and fascinating experiences. What's more, he took some great photos of us.

Emilyz TravelandFilm

★★★★★

"Absolutely exceptional"."

An unforgettable caving experience thanks to Alex! An absolutely exceptional guide: highly competent, passionate and always ready to listen. He was...

Baptiste V

★★★★★

"Absolutely exceptional"."

An unforgettable caving experience thanks to Alex! An absolutely exceptional guide: highly competent, passionate and always ready to listen. He shares his knowledge with enthusiasm, gives invaluable advice, and knows perfectly how to adapt to the expectations and level of each member of the group. What we particularly liked: Alex takes his time. It's not a race against time, but a real immersion, where everyone can take full advantage of the moment, ask questions, observe, and experience the adventure at their own pace. You can tell he really loves what he's doing, and that makes the exploration all the more magical. If you're looking for an authentic, professionally supervised outing on Réunion Island, look no further than Alex!

Baptiste V

★★★★★

"A wonderful experience"."

Thank you to Alex for his zest for life, his passion that he was able to pass on to us...he transported us, the children included,...

Lolo Tutu

★★★★★

"A wonderful experience"."

Thank you to Alex for his zest for life and the passion he was able to pass on to us... he transported us, the children included, into this magnificent experience. We loved the visit to the 2004 tunnel, the knowledge he imparted and the way he put us in a good mood.... An unforgettable experience. I highly recommend it, you won't be disappointed.

Lolo Tutu

★★★★★

"An activity full of surprises and emotions"."

Thank you to Alex for giving us the opportunity to experience an adventure that, despite our advanced age, we hadn't had the chance to...

Olivier Robert

★★★★★

"An activity full of surprises and emotions"."

Thank you to Alex for allowing us to experience an adventure that, despite our advanced age, we hadn't had the chance to try out. His kindness, patience and clear explanations kept us safe during the tricky sections, and it was with a beaming smile that we emerged from the lava tunnel. We recommend this activity, which is full of surprises and excitement.

Olivier Robert

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