In the rule Resources, remove the following bullet points:

* From its Warehouse, to the Manifest of a Docked Boat which has the Loader as its Location
* From the Manifest of a Docked Boat which has the Unloader as its Location, to its Warehouse

Add the following to the end of the rule Routes:

When a Setting SailTimed Action resolves, the Location of the Boat that was the subject of the action is set to the Destination it had when it was In Transit during that Setting Sail action.

Add the following as a sub-rule to the rule Resources, called Cargo:

No more than once per day, when its Location is set to the name of any City, a City may move any number of goods (up to its own carrying capacity) from the Warehouse of the City where their Boat is located to the Manifest of that Boat, or vice-versa.