Here is the guide for the Detective Pikachu quest in the Haikou Region (gen 3). I would strongly suggest only using this guide when absolutely necessary, as it is a whole lot of fun to find these things on your own. It is a mystery, after all. Use the link to get the guide: https://docs.google.com/document/d/1QZ90EpBufRRyIOdgWB2edinosYrV8JzcIHICkWA3cTw/edit?usp=sharing Have fun!