The Conservation Minister says there's huge opportunity for conservation land to generate the country more money. 

A bill's been lodged, promising major reforms aimed at speeding up the DOC sign-off process for concessions on conservation land. 

It would also see overseas visitors charged to visit certain sites – estimated to raise around $60 million a year to go to conservation. 

Tama Potaka told Mike Hosking he's confident visitors are prepared to pay. 

He says they've just started charging for a few carparks and made about $1.5 million for DOC. 

LISTEN ABOVE