[Raziel]

You should also limit it to one or two ships per person. The ship parking places you'd have to put some thought into, because it will be very messy with people leaving their ships inside all over the place. Perhaps an npc "valet" can bring your ship in and out of the parking area to keep things orderly. Also with this you can introduce faster but weaker ships, heavier but more powerful ships, and keep the normal ones too.

And yes, there is currently not enough ocean space. That idea someone had about adding ocean space in between kingdom islands sounds good to me. However, no ocean space from Main to a kingdom, for lazy people.