Waihona — A database of Hawaiian learning resources
Waihona.net is a rich, wonderful resource full of lesson plans, worksheets, unit plans, and images for learning and teaching in Hawaii.
You have to register and get an account (itʻs free!) to view the database, and itʻs well worth it the effort. There arenʻt any nature journaling specific resources (yet), but a lot of great place based curriculum, plus other nature activities specific to Hawaii, some of which are linked elsewhere on this site.