Geology and hotspot volcanism
We start on the Plaine des Remparts as far as the Sainte-Thérèse shrine, then go down into the Plaine des Sables, between its three main cones, one of them Strombolian.
An early morning start. The exact time and meeting point are confirmed by message the day before, based on the weather and the season.
An easy hike, but often very exposed to the sun.