Commerson Crater

Commerson Crater is a volcanic depression in Réunion located at 2,287 meters above sea level with vertical walls dropping approximately 120 meters into the earth below. The site belongs to the Piton de la Fournaise massif and displays the distinctive volcanic landscape features characteristic of this region.

The crater was named after an 18th-century French botanist whose scientific work advanced exploration of the Indian Ocean region. The volcanic structure itself resulted from geological activity that has shaped this area over extended periods.

The crater is part of Réunion National Park and draws visitors interested in exploring the volcanic landscape and geological formations of this region. Its name comes from Philibert Commerson, an 18th-century French botanist whose exploration work helped advance scientific knowledge of the Indian Ocean area.

Several hiking trails lead to observation points around the crater allowing visitors to explore the volcanic landscape from different vantage points. The elevation and terrain require sturdy footwear and reasonable physical fitness for a comfortable visit.

In December 1980, the area recorded extreme rainfall during a cyclone with over 6 meters of precipitation falling in just two weeks. This exceptional weather event became notable for the area's capacity to experience extraordinarily intense storms.

Location: Saint-Joseph

Elevation above the sea: 2,287 m

GPS coordinates: -21.20802,55.64186

Latest update: December 12, 2025 14:26