The Rescue Coordination Centre is urging hunters heading out for the start of the season to arm themselves with distress beacons, after two rescues this week.
Two hunters were rescued on the West Coast north of Haast yesterday morning after setting off their distress beacon at 9am.
RCCNZ, which is part of Maritime New Zealand, co-ordinated the rescue and sent a rescue helicopter from Greymouth to assist the pair.
Senior search and rescue officer Greg Johnston said the hill had started slipping away from under the hunters' feet.
"They found themselves in a life-threatening situation and made the decision to request help before the situation got worse."