The National Environmental Education Foundation (NEEF) has developed this guide to support new and returning site managers in planning and executing successful in-person National Public Lands Day (NPLD) events. It is packed with tools, templates, worksheets, and best practices that have been collected over the years from experienced NPLD site managers. Whether this is your first NPLD or your 30^th, we hope this guide will help you get the most out of your National Public Lands Day celebration.