the 3-points ferry among Varenna, Menaggio and Bellagio run all year round, as it is a very important local commuting line. I'm sure the service from Como runs all the year too, with modified schedule in winter. If their website is not updated, wait till the end of September when winter schedule become usually effective. Just for info, Como is linked to Bellagio by a frequent bus service. Bye

Paolo Trieste, Italy