Searchers have found no sign of a 19-year-old tourist, whose tramping pack was found abandoned in Nelson Lakes National Park.
Search teams spent today in the Travers Saddle area, searching for missing German Christian Ulf Erik Prehn.
The search has concentrated in the area his pack was found but searchers found no trace of Mr Prehn. A helicopter and a dog team have returned to base and two ground teams are spending the night at the Travers Hut. The search would continue tomorrow, weather permitting, search coordinator Senior Constable Dave Colville said.
He said several people who had been in the area have spoken with police but so far none had information about Mr Prehn's intentions.
Police would like to speak to a German woman called Angela Bahr who is believed to have spoken with Mr Prehn at one of the huts.
