▁all ▁factors ▁that ▁may ▁impact ▁varying ▁be aches . ▁The ▁B Q I ▁helps ▁by ▁establish ing ▁various ▁components ▁and ▁categories ▁to ▁help ▁with ▁this ▁classification , ▁something ▁that ▁not ▁all ▁beach ▁indexes ▁include . ▁ ▁Tour ism ▁▁ ▁Be aches ▁are ▁recre ational ▁areas ▁and ▁attract ▁many ▁local ▁and ▁international ▁visitors ▁through ▁sun b ath ing , ▁sw imming , ▁walking ▁or ▁sur f ing ▁activities . ▁This ▁coast al ▁tour ism ▁is ▁important ▁for ▁many ▁countries ▁because ▁tour ism ▁activities ▁contribute ▁to ▁a ▁large ▁fac et ▁of ▁their ▁economy . ▁Therefore , ▁a ▁poll uted ▁beach ▁or ▁coast line ▁may ▁substantial ly ▁impact ▁a ▁country ' s ▁economy ▁neg atively . ▁Cont amin ated ▁be aches ▁have ▁become ▁a ▁global ▁concern ▁since ▁the ▁beginning ▁of ▁industrial ization . ▁Cont amin ated ▁be aches ▁are ▁un att ract ive ▁for ▁international ▁and ▁local ▁tour ists ▁due ▁to ▁a est h etic ▁value ▁or ▁health ▁concerns . ▁H utch ings ▁et ▁al .' s ▁( 2 0 0 0 ) ▁study ▁shows ▁that ▁a ▁clean ▁beach ▁is ▁a ▁very ▁important ▁determin ant ▁of ▁many ▁local ▁and ▁international ▁tour ists ▁in ▁South ▁Africa . ▁According ▁to ▁the ▁study , ▁local ▁and ▁international ▁tour ists ▁choose ▁to ▁visit ▁the ▁country ▁because ▁of ▁the ▁beauty ▁of ▁be aches ▁and ▁the ▁proper ▁climate ▁conditions ▁of ▁the ▁country . ▁If ▁the ▁tour ists ▁do ▁not ▁find ▁their ▁expectation ▁met ▁on ▁a ▁beach , ▁they ▁can ▁travel ▁to ▁other ▁be aches ▁to ▁find ▁a ▁better ▁one ▁in ▁the ▁country