Diving and Shiphandling school
Many traditional skills are useful to Seasteaders, and man Seasteaders will have knowledge of pass to their oceanic industries.
SCUBA diving
There are several programs with similar but slightly different approaches to instruction and certification in self-contained underwater breathing apparatus, in addition to different specialties.
Among these are: PADI NAUI SDI/TDI
Shiphandling
Ship handling is subject to national and international standards. Most nations have adopted or based their regulations on The International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (or STCW)