<prompt> Translate the following text to EnglishHii inahusisha asubuhi au alasiri ya nadharia na kazi ya maji ya chini, ikikupa fursa ya kujaribu mbinu za msingi kabla ya kujitolea mwenyewe kozi kamili ya maji ya wazi.  <response>: This involves a morning or afternoon of theory and shallow-water work, giving you an opportunity to try out the basic techniques before committing yourself a full open-water course. 