▁the ▁P ink ▁Terra ce ▁can ▁be ▁seen ▁today ▁at ▁W ai ot ap u , ▁where ▁the ▁Champ agne ▁Pool ▁is ▁l ined ▁with ▁these ▁same ▁col lo idal ▁sul f ides . ▁ ▁Soph ia ▁H iner ang i , ▁sometimes ▁known ▁as ▁Te ▁Pa ea , ▁took ▁over ▁as ▁principal ▁guide ▁from ▁the ▁older ▁Kate ▁M idd lem ass ▁in ▁the ▁early ▁ 1 8 8 0 s . ▁She ▁became ▁recogn ised ▁as ▁the ▁principal ▁tour ist ▁guide ▁of ▁the ▁P ink ▁and ▁White ▁Terra ces . ▁H iner ang i ▁observed ▁the ▁dist urban ces ▁to ▁Lake ▁T ara wer a ▁water ▁levels ▁in ▁the ▁days ▁preceding ▁the ▁er u ption . ▁In ▁ 1 8 8 5 , ▁Alfred ▁War br ick ▁began ▁gu iding , ▁though ▁he ▁was ▁not ▁from ▁Te ▁Tu hour ang i . ▁ ▁Le ad ▁up ▁to ▁loss ▁A ▁number ▁of ▁people ▁mapped ▁and ▁commented ▁on ▁the ▁region ▁before ▁the ▁loss ▁of ▁the ▁terra ces . ▁No ▁Ma ori ▁maps ▁are ▁known . The ▁first ▁colonial ▁sketch ▁map ▁of ▁the ▁lake ▁was ▁by ▁Per cy ▁Smith ▁in ▁ 1 8 5 8 . ▁Ferdinand ▁Hoch st etter ▁carried ▁out ▁ ▁the ▁first ▁top ographic ▁and ▁ge ological ▁survey ▁of ▁the ▁Lake ▁Rot om ah ana ▁area ▁in ▁ 1 8 5 9 , ▁producing ▁four ▁maps ▁of ▁the ▁lake ▁while ▁camp ed ▁on ▁its ▁shore ; ▁ ▁cul min ating ▁in ▁his ▁defining ▁" Method ▁of ▁S qu ares " ▁( or