Hi,
I was looking at the guage and the river description. The guage is a logarithmic scale looks to be about 130m3/s and the guide says it is ideal from 30 to 40m3/s if my French translation is correct.
Le débit minimum (après avoir appliqué la pondération de 0.

est très approximativement de 20 m3 /s, et à partir de 30 ou 40 m3 /s, on peut dire que le débit est idéal.
Well that means it is ideal above 40m3/s so should be a good fun ride.
Bruce.