Hi Max: there is good level for San Bernardino and Strona, San Giovanni is
near by San Bernardino, so it is easy to take a look, Cannobino probably have too much
for lower gorge, but is O.K for middle gorge.
Normally Loana need also rain, but you can go up in Ossola because Toce have
big water and Loana is not far.
If you need some more info.....
By Alberto.