Walk the mountains
Take the local bus to Dongo and then the smaller local bus up the mountain to Germasino. Walk from there through Stazzona and take the road past the church towards Brenzio. Fantastic views with seating areas along the way, but its a long walk, so buy a picnic at the Iperial supermarket in Consiglio di Rumo before you go. The road leads you right along the mountain and back down into Consiglio di Rumo, which is just before Gravedona. You wont regret it!