▁ 2 0 0 0 , ▁ 3 4 8 ▁p . ▁ ▁Studies ▁of ▁resort s ▁– ▁scientific ▁scope ▁and ▁contemporary ▁tr ends . ▁V arna , ▁Un iv . press . ▁Science ▁and ▁Econom ics , ▁ 2 0 0 5 , ▁p .   9 3 – 1 0 0 . ▁ ▁References ▁▁ ▁Category : 1 9 4 8 ▁birth s ▁Category : 2 0 1 2 ▁death s ▁Category : B ul gar ian ▁writers ▁Category : B ul gar ian ▁educ ators <0x0A> </s> ▁Natural ▁fresh water ▁la kes ▁in ▁Australia ▁are ▁rare ▁due ▁to ▁the ▁general ▁absence ▁of ▁gla cial ▁and ▁t ect onic ▁activity ▁in ▁Australia . ▁ ▁Types ▁ ▁Most ▁la kes ▁in ▁Australia ▁fall ▁within ▁one ▁of ▁five ▁categories . ▁Ex cluding ▁la kes ▁created ▁by ▁man - made ▁d ams ▁for ▁water ▁storage ▁and ▁other ▁purposes , ▁one ▁can ▁identify ▁the ▁following : ▁ ▁coast al ▁la kes ▁and ▁l ago ons ▁including ▁per ched ▁la kes ; ▁ ▁natural ▁fresh water ▁in land ▁la kes , ▁often ▁e ph em eral ▁and ▁some ▁part ▁of ▁wet land ▁or ▁sw amp ▁areas ; ▁ ▁the ▁Main ▁Range ▁containing ▁main land ▁Australia ' s ▁five ▁gla cial ▁la kes . ▁In ▁Tas mania , ▁due ▁to ▁gla ci ation , ▁there ▁are ▁a ▁large ▁number ▁of ▁natural ▁fresh water ▁la kes ▁on ▁the ▁central ▁plate au , ▁many ▁of ▁which ▁have ▁been ▁en larg ed ▁or ▁modified ▁by ▁hydro - elect ric ▁develop