With the advent of ships and transoceanic exploration, the skill of Seafaring was unveiled to give adventurers abilities with which to truly excel and proper whilst navigating the extensive oceans and seas surrounding the continent of Sapience. It is unique among all skills through a number of respects.
Firstly, access to Seafaring is acquired only by obtaining a Fully Attested Marque of Unquestioned Seaworthiness. Secondly, training in Seafaring involves specialisation in various vocational paths - Deckhand, Weapons, Helm, Watch, and Command - each of which is given a set of unique abilities. Finally, abilities in Seafaring are not gained through simple progression of skill ranks via lessons but rather by the usage of accumulated Seafaring Promotion Points (SPPs) received from advancement through the aforementioned skill ranks.
Within each of the five Seafaring specialisations are assigned ranks I, II, III, IV, and V. It is by reaching these ranks that abilities within each specialisation (as well as the four general Seafaring abilities) are gained. Each following rank requires an additional number of SPPs equal to the value of that rank number to be utilised in order for the rank to be achieved, such that rank I requires one SPP, while reaching rank II from rank I requires two more SPPs, and so on, totalling 15 SPPs needed to reach rank V. Two noteworthy facts regarding Seafaring ranks: 1) Transcendence in Seafaring bestows about 32 SPPs, which may be used in any manner, whether that be two rank V specialisations and two SPPs used elsewhere, or eight SPPs spread out equally in four specialisations, and 2) one each of the four general Seafaring abilities is attained by reaching ranks II, III, IV, and V, respectively, in any specialisation.