Should I prebook tickets to Geoffre de Padirac?
 

Is it important to pre-book tickets to Geoffre de Padirac, not sure what time of day we will be there,

I haven't been there in years and did not prebook the gouffre de Padirac. Since group size is limited, we had to wait an extra hour for the next group. That wasn't a big problem, but I wouldn't want to wait two or three hours.