0 0 - 8 0 0 ▁people , ▁mostly ▁w ives ▁of ▁fish erm en ▁working ▁in ▁local ▁production . ▁Yet , ▁between ▁ 1 9 3 0 ▁and ▁ 1 9 6 0 , ▁there ▁was ▁a ▁considerable ▁decl ine ▁in ▁fort unes , ▁resulting ▁in ▁the ▁closing ▁of ▁many ▁of ▁these ▁fact ories , ▁the ▁reduction ▁in ▁fish ing ▁boats ▁along ▁the ▁coast ▁and ▁the ▁abandon ment ▁of ▁many ▁of ▁the ▁homes . ▁The ▁population ▁was ▁reduced ▁by ▁half ▁and ▁the ▁fish ing ▁industry ▁became ▁a ▁subs istence ▁activity , ▁supporting ▁local ▁consumption ▁only . ▁ ▁The ▁town ▁started ▁to ▁become ▁a ▁hub ▁for ▁tour ism ▁in ▁the ▁ 1 9 6 0 s , ▁and ▁has ▁grown ▁to ▁accommod ate ▁this ▁since , ▁growing ▁out ▁into ▁the ▁surrounding ▁hills ▁to ▁accommod ate ▁thousands ▁of ▁the ▁ 5 ▁million ▁tour ists ▁who ▁visit ▁the ▁Al gar ve ▁region ▁each ▁year . ▁ ▁Geography ▁ ▁Dest in ations ▁from ▁Al buf e ira ▁ ▁International ▁relations ▁ ▁T win ▁towns / c ities ▁Al buf e ira ▁is ▁tw inned ▁with : ▁▁ ▁Dun fer ml ine , ▁F ife , ▁United ▁Kingdom ▁( since ▁May ▁ 1 9 9 5 ) ▁ ▁Econom y ▁Tour ism ▁and ▁commerce ▁are ▁the ▁main ▁activities ▁in ▁Al buf e ira . ▁Most ▁tour ists ▁arrive ▁via ▁Far o ▁Airport . ▁ ▁Tour ism ▁ ▁The ▁tour ist ▁areas ▁are ▁divided ▁into ▁two ▁main ▁areas , ▁Are ias ▁de ▁São ▁João , ▁known ▁col lo