Here you'll find some links to maritime webcams which show live images from all over the world.

Canals :

Kiel Canal - Holtenau Lock	Kiel-Holtenau Lock
Kiel Canal - Holtenau Lock	Kiel-Holtenau Lock
Kiel Canal - Brunsbuttel Lock	Kiel-Brunsbuttel Lock
Miraflores, Panama	Miraflores locks, Panama Canal
Sault Ste Marie, USA	Locks between Lakes Superior and Huron, Mich

Ports and Harbours :

Alster	Inland Water at Hamburg
Hamburg	River Elbe at Hamburg
Vancouver, Canada	Port of Vancouver
Tallinn, Estonia
New Orleans	New Orleans Cruise Ships
Helsingborg, Sweden
River Weser, Bremen	Bank of the Weser
Royal Dirkzwager, Rotterdam	New Waterway near Maassluis
Seinpost, Hook of Holland	New Waterway near Hook of Holland
IJmuiden, Amsterdam	Locks at IJmuiden, Amsterdam
Eurokai, Hamburg	Port of Eurokai
Funchal, Madeira	Harbour of Madeira (other views available)
Falmouth, Cornwall	Falmouth Harbour
Lowestoft, Suffolk	Sea Front
Houghton, Mich	Portage Canal Lift Bridge,Houghton/Hancock, Michigan
Friday Harbour	San Juan Islands, Washington State (others too)

Ships :

Cap San Diego	on berth in Hamburg
Norwegian Sky	Camera in bow of cruise ship Norwegian Sky
Norwegian Sea	Camera in bow of cruise ship Norwegian Sea
Norwegian Wind	Camera in bow of cruise ship Norwegian Wind
Norwegian Dawn	Camera in bow of cruise ship Norwegian Dawn
Norwegian Dream	Camera in bow of cruise ship Norwegian Dream
Norwegian Jewel	Camera in bow of cruise ship Norwegian Jewel
Norwegian Majesty	Camera in bow of cruise ship Norwegian Majesty
Norwegian Star	Camera in bow of cruise ship Norwegian Star
Norwegian Sun	Camera in bow of cruise ship Norwegian Sun
Pride of Aloha	Camera in bow of cruise ship Pride of Aloha
Pride of America	Camera in bow of cruise ship Pride of America

Towns :

River Thames	London Eye, Parliament, etc
Main Square, Narvik	Norway

External Links :

Portsmouth, Hants	Live ferries...
Stavanger, Norway	Pretty harbour
Zurich	Central Redicam
Geneva	Various Locations

Misc :

SlideShow	This is an evaluation at present - 18-Jun-02
Soo locks video	NB - 75Mbytes... A speedy month of activity
Panama Canal video	A short video - 750k