Islands often experience intense tourist flows during peak seasons, leading to increased waste generation and pressure on local resources. The EU-funded ReBoat project addresses these challenges by developing an innovative decentralised circular economy solution targeting plastics and textiles. Central to the initiative is a mobile, modular recycling plant onboard a boat, which will transform local waste into new products. With pilots in the Eolian, Ionian and Azores islands, ReBoat fosters community engagement through a participatory approach, collaborating with artists, students and designers to create unique experiences. The project aims to promote sustainable tourism while providing practical training and replicable models for local stakeholders, ensuring a lasting impact beyond its duration.