Aven Marzal

Aven de Marzal is a karst cave near Saint-Remèze, in the Ardèche region of southern France, celebrated for its dramatic mineral formations and paired with an above-ground complex that mixes speleology history with a prehistoric-themed park.

How to get there?

The cave sits on the Ardèche plateau within the municipality of Saint-Remèze, close to the well-known Gorges de l'Ardèche canyon. Its coordinates are 44.3695888, 4.5105687. The easiest way to reach it is by car via the local roads connecting Saint-Remèze to the surrounding tourist towns of the region; on-site parking serves visitors to the whole complex.

What will you see?

The site's story begins in 1892, when French speleologist Édouard-Alfred Martel became the first to survey the cave. In his book "Les Abîmes," he ranked it among the most beautiful caves in the world, praising the variety of shapes and colours in its rock formations. After a period when access to it was lost, the cave was rediscovered in 1949 by speleologist Pierre Ageron, and it has been open to visitors on a regular basis ever since.

Today the cave itself can only be visited with a guide, on a tour lasting roughly 45 minutes that descends to a depth of 125 metres. Getting down requires 380 steps, and the climb back up another 361 - worth factoring in if you're travelling with children or anyone with limited mobility. The visit includes a sound-and-light show featuring the voice of singer Nicole Rieu, and audio guides are available in English, German and Dutch for international visitors.

The Aven de Marzal complex, however, extends well beyond the cave. At ground level, a museum dedicated to the underground world displays authentic equipment used by 19th-century cave explorers - ropes, lamps and tools that help visitors picture what early cave expeditions actually involved. Entry to the museum is free.

In 1983, the site added a further attraction: France's first Prehistoric Zoo. Along an 800-metre forest walking trail, life-size reconstructions of dinosaurs and other prehistoric creatures are set among the trees, making the walk popular with families who want to combine the underground visit with an outdoor stroll among prehistoric giants.

When to visit?

Given the mix of activities - the cave tour and the outdoor dinosaur trail - spring and summer are the most rewarding seasons, since good weather makes the above-ground portion of the visit far more enjoyable. The cave itself keeps a constant temperature year-round, so it can be toured in any season, but the forest walk and prehistoric park are best experienced outside the winter months.

Frequently asked questions

How long does the cave tour take? The guided visit lasts about 45 minutes and takes you down to a depth of 125 metres underground.

Is the visit physically demanding? Yes - the descent involves 380 steps, and the return climb another 361, so it's worth considering your fitness level before booking.

Are guides available in languages other than French? Yes, audio guides are provided in English, German and Dutch.

What else is there to see besides the cave? The complex also includes a free museum on the history of speleology, with authentic 19th-century caving equipment, and a prehistoric park with life-size dinosaur reconstructions, opened in 1983 as the first of its kind in France.