can't beat going by ferry - it's relaxing and the cost is cheap. I was lucky a few years ago to be on the Manly Ferry when the two Queens were docking. The fireworks were going off and the ships were hooting each other. It cost nothing to see that. The ferry stopped to watch and the passengers were delighted.
Ferries are fun, though they can only go to limited destinations. I prefer buses. I don't like being on trains by myself alone at night for safety reasons. At least if you're on a bus at night the driver is there and can see you.