• As a side trip from a Paris Stay in early March, what is the best way to see the Cro-Magnon caves in Southwest France? Rental car, Tour group, Train, Bus?
Day trip or overnight stay?
You're talking at least six hours from Paris by car. Caves are not convenient to public transit. You might want to look into tours, because you'll know you're getting in at the right time and with English language guidance.