Sustainability Camps provide an opportunity for Extension educators to be in the forefront of sustainability outreach and to meet the growing demand for sustainability education. This article shares development, implementation, and evaluation of an Extension Sustainability Camp for youth, grades 4-6. Camp impact was measured via daily pre-and post-journaling activities, changes in camper lunch waste produced, and a retrospective post-then-pre household evaluation follow-up. Significant awareness and behavioral changes were documented with sustainability topics ranging from land conservation to renewable energy. The camp structure and evaluation design could serve as a model for Extension educators interested in sustainability outreach.