The routes only say which chests you need to take. Here are their locations if you don't know where they are:

New Game https://docs.google.com/document/d/1Sdg1vcxSaYgqZX0oLrPMZNG4U5JSGcfB9pil2oj-KCU

New Game+ https://docs.google.com/document/d/1XU9RSeAcV6L_QayPb9gqzXK_GvYFsZta-yDdc_epHP0