Over the past few weeks I’ve made a number of excursions into the interior of Reunion Island where its spectacular volcanic history is found. I’ve included a map of Reunion which shows the three calderas(cirques) near the island center – Cirque de Mafate, Cirque de Cilaos and Cirque de Salazie, all dormant. At the conjunction of these cirques is Piton des Neiges, at 3071 meters the highest point in the Indian Ocean. In the lower right hand (SE) corner of the map is Piton de la Fournaise, the only active volcano on Reunion which last erupted in April, 2021.
To access these places, I had to drive up incredibly winding, narrow mountain roads, some with one-way tunnels blasted from solid rock (look for on-coming headlights before entering). The French certainly excel at building roads like this – there all over this island and France as well.