I just came back from a week spent in Marseille, this beautifull (and sunny) French city by the sea; Marseille is famous for its harbor and recently the city has been providing a free ride on an electric boat to cross this big harbor and avoid going around it to go from a part of town to another. Here are some pictures of it;
I will try to post a video of it later on ...
The electric boat:
The roof is fully covered with solar panels
It goes both directions, back and forth between the two harbor banks, and anybody can use it to croos (once at a time; you have to get off, you can not stay on the boat when the crossing is done)