The father of a teenager killed in a canyoning tragedy in the central North Island says it is up to the outdoor industry to prove to parents that enough is being done to keep children safe.
Six students and their teacher from Elim Christian College in Auckland died in the Mangatepopo Gorge during flash flooding on 15 April 2008.
The group was on a school trip at the Sir Edmund Hillary Outdoor Pursuit Centre in Tongariro National Park.
Coroner Chris Devonport released his findings into the deaths on Tuesday, saying the centre was complacent about safety and could have prevented the deaths.
Mr Devonport called for a licensing system for outdoor education operators.
But Andy Bray, whose daughter Natasha Bray drowned, says the coroner's recommendations may not go far enough.
Mr Bray told Morning Report the Sir Edmund Hillary Outdoor Pursuit Centre has great policies but the tragedy is an example of how they can be ignored in practice.
Though he does not want the centre closed, he says he cannot be sure that other children would be safe there.
Listen to Morning Report interview with Andy Bray
Gorge could be used in six months
The Mangatepopo Gorge has not been used by the Sir Edmund Hillary Outdoor Pursuits Centre since 2008 but school groups could be using it again in as little six months.
The centre says it will follow the 23 coronial recommendations as well as its own changes before opening the gorge again in six to nine months.
However, some parents say any time is too soon. They say the gorge should be reserved for experienced instructors - not used for children with limited outdoor knowledge.