I suggest you spend one night in the Venini Refuge and another in Colonno, although there are other places to choose from. This Collection starts and ends in the Griante car park, easily reachable by car from Como or from Valtellina. In Griante, you can leave your car for the whole hike. If you don’t want to drive, you can take the ferry to Cadenabbia from Como and walk to the starting point. Another option is the bus from Como; both ferry and bus take around two hours. I don't recommend starting the walk in the afternoon because the road to Venini Refuge is long and it might get dark before you finish. So, if you arrive in the afternoon, it’s better to stay overnight in Griante, or nearby, and leave the following morning.