There are in fact dozens of underground limestone vaults attracting botanists and zoologists to witness their unique flora and fauna, but only three caves are open to the general public.
There is a lot of unique flora and fauna here.
But the best way to evoke his memory is to drive out to the subject of his most famous landscapes, the Montagne Saint-Victoire, 14 km (9 miles) east of Aix on D10.