seaport

n. harbor, wharf where ship load and unload goods or passengers; city with a harbor or wharf

A port is a facility for receiving ships and transferring cargo. They are usually situated at the edge of an ocean, sea, river, or lake. Ports often have cargo-handling equipment such as cranes (operated by longshoremen) and forklifts for use in loading/unloading of ships, which may be provided by private interests or public bodies. Often, canneries or other processing facilities will be located very close by.  Harbour pilots , barges and tugboats are often used to safely maneuver large ships in tight quarters as they approach and leave the docks. Ports which handle international traffic will have customs facilities.
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Noun
1. a sheltered port where ships can take on or discharge cargo
(synonym) haven, harbor, harbour
(hypernym) port
(hyponym) coaling station
(part-holonym) seafront
(part-meronym) dock, dockage, docking facility

(n.)
A port on the seashore, or one accessible for seagoing vessels. Also used adjectively; as, a seaport town.
  

To dream of visiting a seaport, denotes that you will have opportunities of traveling and acquiring knowledge, but there will be some who will object to your anticipated tours.