Updated Version
Dover:
Cruise Terminal for Cruise Liners, eg Ocean Star
Ferry terminal for berthing Ferries
Marina
Dover Cargo terminal - Agile Solution
Tug Haven - Useful for mooring cargo/cruise liners, and ferries in bad weather
Eastern Arm, end is used for mooring vessels
Hoverport - Freedom 90
RNLI Lifeboat Station
Pilot/Patrol vessel
Harbour Tour Vessel
Calais:
Ferry terminal
Hoverpad (2, if you include the one inside the port)
Large Freight Area
More tugs
Can moor Anchor Handling Tugs
Another Marina
Drydock
Pilot Vessels
Dover-Calais Environment:
Ability to do cross channel services. Not just with ferries, but you could have the Agile Solution, or maybe a tug pull a barge from Dover-Calais, Personal Yachts going from one marina to another...