Mr Cadogan said his idea was in an ''embryonic stage'' but the proposal was to have a geo-sensing app for Chinese visitors travelling between Dunedin and Queenstown.
The app would automatically provide information for travellers as they passed certain destinations, and would be in Mandarin and English, and maybe Cantonese.
Mr Cadogan said he got the idea from other geo-sensing apps he had heard of overseas, and also memories of another venture to prepare a ''paper trail'' guide for Chinese tourists many years ago that ''never got off the ground''.
He intended to locate those behind that venture to see if any research done could be used for his app, and was also investigating how it could be funded and managed.
His idea was to facilitate the app, but he hoped it would then be ''taken over'' by another entity, and that costs would be minimal.
Mr Cadogan said several fellow southern mayors, including Dunedin Mayor Dave Cull, were all supportive of the idea.
