A "Port of Call" refers to a stop made by a ship during its journey, where it docks to allow passengers to disembark and explore the area. These stops can be part of a cruise itinerary or a commercial shipping route, providing opportunities for tourism, trade, and resupply. Typically, ports of call are located in coastal cities or regions with access to the sea. They can vary in size and facilities, ranging from small harbors to large commercial ports. Popular ports of call for cruise ships include destinations like Caribbean islands, Mediterranean cities, and Alaskan ports.