What is a Long Sea Journey?

A long sea journey is a voyage by sea that takes a long time to complete. It can be a journey across an ocean, or it can be a journey along a coastline. Long sea journeys were common in the past, when people travelled by ship, such as the famous trade routes of the Silk Road. Today, long sea journeys are less common, as people can travel by air. However, there are still some long sea journeys that are popular, such as cruises.