Within this harbour is the small harbour of the deys, now transformed into a wet dock.
Before that time there was no basin or wet-dock, though the river Medway to some extent answered the same purpose, but a portion of the adjoining salt-marshes was then taken in, and three basins have been constructed, communicating with each other by means of large locks, so that ships can pass from the bend of the Medway at Gillingham to that at Upnor.
There is a steady export of coal, and the harbour is provided with a wet dock and patent slip. In smuggling days the "Canty carles" of Dysart were professed "free traders."
The harbour has an inner and outer division, with wet dock and wharves.
There is a wet dock of 32 acres.
