A seriously injured German tourist who fell more than 10 metres into a crevasse at Fox Glacier today (Thur) will have to spend the night there with her rescuers.
The woman fell near Pioneer Hut about 3pm, and her boyfriend raised the alarm at a nearby hut.
A search began about 3.30pm and rescuers reached her at 6pm.
A rescue helicopter was unable to reach the scene tonight because of low cloud.
MetService forecaster Liz Walsh said the very low cloud in the area would increase.
The temperature at the glacier could get as low as 5C overnight, she said.