The message, right, found in the sand at Lake Ahaura. Photo: Supplied / NZ Police
A mysterious "help" sign scratched in the sand at a remote West Coast lake has police asking questions.
A helicopter flying over Lake Ahaura, east of Greymouth in deep bush, spotted the message recently.
Police said they are looking for any information about who wrote the sign.
"We are asking to hear from anyone who knows of parties having gone into that area recently," police said in a statement.
"We would also like to hear from anyone who may have written the message and who now (is) safe and well."
To report information, ring 105 and quote event number P055875858.