The term 'Harbor Helper' refers to two jobs that are essential for the safe and efficient operation of a harbor. The first job is that of a Tugboat, which is a large vessel that is used to pull or push other vessels in and out of the harbor. The second job is that of a TUG, which is a smaller vessel that is used to maneuver ships in and out of tight spaces in the harbor. Both of these jobs are necessary for the safe and efficient operation of a harbor.