▁the ▁boat ▁facing ▁backwards ▁to ▁see ▁the ▁sk ier . ▁The ▁sk ier ▁and ▁the ▁boat ' s ▁occup ants ▁communicate ▁using ▁hand ▁signals ▁( see ▁the ▁Saf ety ▁section ▁below ). ▁ ▁Equ ip ment ▁ ▁Water ▁ ▁Water ▁ski ing ▁can ▁take ▁place ▁on ▁any ▁type ▁of ▁water ▁– ▁such ▁as ▁a ▁river , ▁lake , ▁or ▁ocean ▁– ▁but ▁cal mer ▁waters ▁are ▁ideal ▁for ▁recre ational ▁ski ing . ▁ ▁There ▁should ▁be ▁a ▁ ▁ski ing ▁space ▁and ▁the ▁water ▁should ▁be ▁at ▁least ▁ ▁deep . ▁There ▁must ▁be ▁enough ▁space ▁for ▁the ▁water ▁sk ier ▁to ▁safely ▁" get ▁up ", ▁or ▁successfully ▁be ▁in ▁the ▁u pr ight ▁ski ing ▁position . ▁Ski ers ▁and ▁their ▁boat ▁drivers ▁must ▁also ▁have ▁sufficient ▁room ▁to ▁avoid ▁ha z ards . ▁ ▁Sk is ▁ ▁Young er ▁ski ers ▁generally ▁start ▁out ▁on ▁children ' s ▁sk is , ▁which ▁consist ▁of ▁two ▁sk is ▁tied ▁together ▁at ▁their ▁back ▁and ▁front . ▁These ▁connections ▁mean ▁that ▁less ▁strength ▁is ▁necessary ▁for ▁the ▁child ▁to ▁keep ▁the ▁sk is ▁together . ▁Sometimes ▁these ▁sk is ▁can ▁come ▁with ▁a ▁handle ▁to ▁help ▁balance ▁the ▁sk ier ▁as ▁well . ▁Children ' s ▁sk is ▁are ▁short ▁– ▁usually ▁ ▁long ▁– ▁reflect ing ▁the ▁sk ier ' s ▁smaller ▁size . ▁Once ▁a ▁person ▁is ▁strong ▁enough ▁to ▁hold ▁the ▁sk is ▁together ▁themselves ▁there ▁are ▁various ▁options ▁depending ▁upon ▁their ▁skill ▁level ▁and ▁weight . ▁