The goal is to get the teams to find the treasure at the end of a fun course with 4 main stages and several clues to reach these stages. Each of the steps is a mission to achieve related to the field of waste reduction, street cleanliness or sorting and recycling. For example, participants will find ways to get a product without producing waste, to find the right bin to throw away packaging, to discover an incentive system for sorting glass, etc. At the end, the team that will succeed in passing all the stages gains access to the treasure: a zero-waste survival kit, books on this theme and places for the oceanographic museum to meet marine biodiversity. And since the most important thing is to participate, all participants will also win a zero waste kit!