Now in its 59th year, the Walkathon asks students to hike 80 kilometres in 24 hours to raise funds for a charity of their choice.

Inspired by Grace Tame, the students decided to put the money towards helping fund The Survivor Voices Project book, which will tell the stories of a diverse group of survivors, told on their own terms.

The students completed the event in April with a goal of raising $50,000, but acting principal Nicholas Foster said the student's had gone above and beyond in their fundraising efforts.

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"They've smashed that goal, and so the excess money will go towards putting resources together to support survivors of assault, and the process they need to go through to get their story told," Mr Foster said.

"These students have been the voice of change they want to see in their world."

In a statement on Wednesday #LetUsSpeak founder and Walkley Award Winning journalist Nina Funnell - who started the campaign after learning of victim gag-laws in Tasmania and the Northern Territory - thanked the students for their "extraordinary efforts".

"We are now one step closer to a world where survivors know that they will be believed," Ms Funnell wrote.

"We are also one step closer to a world where sexual violence cannot occur because there is no longer silence to enable it or shadows to conceal it."

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Ms Funnell said the because of the hard work from the students, additional resources were able to be produced for survivors.

"10 years ago, or even five years ago, I can't imagine a school would have taken on this issue, because it was so stigmatised," she said.

"The fact that they have been willing to go there and show up with full hearts and minds is - as a survivor - very moving, and it gives me a lot of faith and hope in the next generation."

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