Parking is readily available. I suggest you get there early however as the nearest spots fill up fast.
Depending on how long the cruise is another option is pay meters nearby at $3.25/ hour.
Yes, there is parking right next to the dock, it does fill up fast. There is also a parking garage about a block away across the street that charges 10$
Right next to where the Hornblower boats dock, go down that one way drive to a parking lot. It's by far the closest. But, get there early it fills up fast.
There is one that is 10 bucks for all day
Its right by the docking area, off to the right. $10 for parking
Thanks! Your answer is awaiting moderation.