ut aries ▁and ▁waters h eds ▁of ▁Lag una ▁de ▁Bay ▁have ▁led ▁to ▁the ▁creation ▁of ▁the ▁Lag una ▁de ▁Bay ▁River ▁Bas in ▁Coun c ils , ▁of ▁which ▁the ▁M T SC - San ▁Juan ▁River ▁Prote ction ▁F dn ., ▁Inc . ▁is ▁particularly ▁task ed ▁with ▁the ▁conservation ▁of ▁the ▁San ▁Juan . ▁ ▁S ources ▁ ▁See ▁also ▁ ▁Lag una ▁de ▁Bay ▁ ▁Lag una ▁Lake ▁Development ▁Author ity ▁ ▁Category : R ivers ▁of ▁the ▁Philippines ▁Category : T rib ut aries ▁of ▁Lag una ▁de ▁Bay ▁Category : Cal amba , ▁Lag una ▁Category : Land forms ▁of ▁Lag una ▁( prov ince ) <0x0A> </s> ▁Saint ▁Ign ati us ▁G ymnasium ▁( St . ▁Ign ati us g ymnasium ) ▁is ▁one ▁of ▁the ▁five ▁categ orial ▁g ymnas ia ▁( a ▁type ▁of ▁school ) ▁in ▁Amsterdam , ▁Netherlands . ▁T ogether ▁with ▁the ▁V os si us ▁G ymnasium , ▁the ▁Bar la eus ▁G ymnasium ▁and ▁C yg n us ▁G ymnasium ▁it ▁is ▁among ▁the ▁most ▁pr estig ious ▁schools ▁in ▁Amsterdam . ▁Ign ati us ▁is ▁located ▁in ▁the ▁Jan ▁van ▁E ij ck stra at ▁in ▁the ▁aff lu ent ▁' Old ▁South ' ▁district ▁of ▁Amsterdam . ▁ ▁It ▁is ▁one ▁of ▁the ▁few ▁Catholic ▁g ymnas iums ▁in ▁the ▁Netherlands , ▁founded ▁in ▁ 1 8 9 5 . ▁ ▁Origin ally ▁a ▁Jes uit ▁school , ▁it ▁is ▁named ▁after ▁the ▁founder ▁of ▁the