Most of all, I like the quiet, rounded tugs. They remind me of women. As I watch them work I see them as kindly, no-fuss boats which patiently tend much larger, grander and more important-looking ships. They make sure these ships get to the right place as the right time, shepherding them with a pull or a push as needed. Their power is not immediately obvious but it is there - inside. I watch them a lot and never tire of seeing their unsung but absolutely essential work. The silent strong women of the sea.