is one where the water does not freeze in wintertime.
Because they are available year-round, warm-water ports can be of great geopolitical or economic interest.
"Cruise home ports" are very busy places during the day the cruise ship is in port, because off-going passengers debark their baggage and on-coming passengers board the ship in addition to all the supplies being loaded.
The port may handle one particular type of cargo or it may handle numerous cargoes, such as grains, liquid fuels, liquid chemicals, wood, automobiles, etc.
Such ports are known as the "bulk" or "break bulk ports".
It may be a recreational facility, but it is usually commercial.
A fishing port is the only port that depends on an ocean product, and depletion of fish may cause a fishing port to be uneconomical.