On this page, you can track cruise ships across the globe.
You can filter the ship types displayed using the Vessels Filter icon in upper left. For cruise ships, select only Passenger Vessels (although it will include ferries and such). You can also use the Search icon and filter the results by ship name or cruise line name. If you click on a ship name, you can get ship details and the path of the ship.
The ship tracker is provided by Marine Traffic, the world’s leading provider of ship tracking and maritime intelligence.