Designing opportunities for students to discover core science concepts can be challenging, however, with a good understanding of their interests, proper planning, and the use of technology and the outdoors, students can become engaged in a way that can leave a legacy for future students. Last fall, this author designed a nine-session unit for a group of fourth and fifth graders that incorporated ecology, sustainability, problem-solving, exploration, and gaming into student-created "seQRet Treasure Hunts" through the school's outdoor learning nature preserve. In the finished product, both treasure hunters and the student-designers gained self-directed understanding of the science curriculum and became more aware of the world beneath their feet, all in an enriching learning opportunity that was designed based on a survey of individual student interests.