The World Vision fundraiser involved Rose, Erika Bishop, Gemma Forlong and Nikita Coubrough (all 15) taking a bath from Oamaru to Omarama.
The bath sat on a trolley and the girls worked in pairs, doing 30-minute stints.
Their plans changed a little from their original concept after they received requirements from the New Zealand Transport Agency.
Instead of leaving Waitaki Girls High School at 6am on Saturday, they left at 8am and they had to stop for the night at 6pm.
They were not allowed to pull the bath up hills.
Rose, whose colourful costume included purple tights and togs, had decided it would be fun to dress up.
They had made more than $2000, with one woman giving $500.
The girls arrived at Omarama at 5.30pm yesterday very tired.
