"People kept trying to feed us," participant Nina Riddell said.
The five pupils spent 40 hours in the cage and raised more than $1000 for this year's World Vision 40 Hour Famine appeal.
They got into the cage at 6pm on Friday and emerged cold and hungry yesterday morning.
They had an eagerly anticipated hot cooked breakfast at a cafe at 10am yesterday.
Nina said they did not eat the whole time, despite being offered food by passers-by.
"I was starving after about 24 hours," she said.
Some cheeky fellow pupils tried to put chicken bones into their donations chute.
"People were concerned about us. They wanted to feed us and make sure we were keeping warm. One lady even sang us a lullaby," she said.
She said she only slept for about four hours and felt that it was colder during the day than at night.
Matt Millikan said it was an "interesting experience" and the cage was "very snug".
The pupils had met some interesting people during their time in the cage, he said.
"One guy jumped on top of the cage and another threw beer at us," he said.
However, most passers-by were very friendly.
One man stayed with the pupils for about two hours on both nights talking and keeping them company, Matt said.
