SDG Marathon Online Activity is a practical learning activity for innovation and entrepreneurship that integrates science and education. We will invite experts and scholars in relevant disciplines to foster sustainable development and innovation values, creativity, action, international competence, and teamwork among young students. During the 12-hour marathon challenge, campers will experience the whole process of developing innovative solutions and have an experiential learning journey of exploring the unknown, cross-discipline and teamwork in a multicultural and interdisciplinary atmosphere.