Sorimizu

from the publisher's website: Guidebook #2 focuses on Sorimizu and takes you into this sprawling land of lazy waters. Exciting details and adventure hooks are on every page. You'll find expanded information on Sorimizan history, military structure and settlements, as well as new places of interest and more. Random encounter tables keyed specifically for the province, with all new people and creatures, fully immerse you into the setting more than ever before!