There is a new, updated cruising guide to Stewart Island / Rakiura now available. A bit more comprehensive than the older guide, 85 pages, chartlets and satellite illustrations, and, best of all, free download as a pdf.
Download is hosted by the Otago Yacht Club on their web site at https://otagoyachtclub.org.nz/wp/stewart-island-sailors-guide/
Feel free to share it around