having worked passenger ferrys during my formative years, I can comment on them only from the passenger perspective. I would rather carry 150,000 bbls of gasoline than carry one passenger.
Petroleum doesn't complain, bitch, gripe, and have to be kiss assed into happyness!
But other than that, passenger jobs are ok!
These are small tonnage, entry level jobs, with low pay, few benefits, seasonal positions, and little opportunity for advancement.
Read some of the ads that appear in workboat, or other industry emails. ACL ALWAYS has ads for "Mates" wanted. I wonder why they're always looking?