Environmental School Invitation: Holland, MI Written by Debby Walters | February 21, 2018 | Blog Environmental School, Course 4 will be held in Holland, Michigan on April 9-10, 2018. The focus will be on water. Its ecology, plants, wetlands, rain gardens, animals and sustainability. For more information and to register. Share this:FacebookTwitterLinkedInGoogle Submit a Comment Cancel reply Your email address will not be published. Required fields are marked *Comment Name * Email * Website Notify me of follow-up comments by email. Notify me of new posts by email.