What are the advantages and disadvantages of a longshore current?

Longshore currents can transport sediment along Coastlines, helping shape beaches and maintain coastal ecosystems. They facilitate the natural movement of sand, which can prevent erosion in some areas. However, these currents can also pose hazards for swimmers and surfers, potentially leading to dangerous rip currents or increased erosion in certain spots. Additionally, they may impact navigation and fishing activities along the shore.