Police are seeking information from members of the public who have been in the Nelson Lakes area this week, after a man failed to return from a solo tramp.
The 28 year old Chinese man left West Bay at Lake Rotoiti on Tuesday, August 20 and was due back by midday on Wednesday.
His vehicle has been located in the West Bay area.
Constable Dave Cogger of Nelson Police Search and Rescue said the man was believed to have good gear and some experience.
A search team is being prepared to enter the area today.
Anyone who has been tramping in the area or anyone who believes they have had contact with the man should contact Nelson Police on 546 3840.
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