The material below is Open Game Content from a 3PP Source
You know all the ins and outs of life in the seedy ports of call that sailors use as stopover points in their journeys.
Prerequisite: Knowledge (local) 1 rank, Profession (sailor) 1 rank
Benefit: You receive a +4 bonus on Knowledge (local) checks made in any port city. With a successful Knowledge (local) check (DC 10 + the NPC’s hit dice or challenge rating) you can find an NPC contact of a type you specify. You can either specify the person’s profession, at least one NPC or PC class level, or the presence of 5+ ranks in a particular skill. Add +5 to the DC if attempting to find an NPC whose alignment matches your own. Finding this contact requires 2d4 hours of searching. You may attempt this check once per day. You may take 10 on this check, but not 20.