Hola Grazia,
I can think of no reason you can't
cruise the Beagle,Magallanes, and the Channels in a cat...
Hardest part is getting there....
50% of the yachts I encountered in over a thousand miles when going north to Montt last September/October were cats.... all one of her ...
Only a couple of minor issues that I can think of.....
Didn't get a good look at her as only got within a mile or so but she was of this style
http://gallery.crobos.com/yachts/cat...n-52-4600.jpeg
How they were coping with
condensation on those windows I don't know.... daytime temps at the time were not getting above 2*C .
Only other issue would be that some of the
anchorages would be too tight but they would be in the minority... a big cat would still have plenty to choose from.... you would just have to be a little selective.
While in the minority cats do
cruise the area...so it is quite achievable.