A helicopter is searching the Nelson Lakes National Park after a tramper left a bag inside West Sabine Hut.
Police are trying to identify the owner of the bag who had attached a note saying they would be back to collect the items on April 7.
Police were alerted to the bag yesterday which contained clothing and tramping boots.
Search and rescue personnel is checking the area this afternoon to gather further information.
Police would also like to hear from anyone who has been tramping in the West Sabine area in the last fortnight who has information that may assist.
Anyone with information should call Nelson Police, Ph 5463840.