Watershed Journeys is a decision-practice platform that explores how water flows through the textile dyeing industry. Grounded in the realities of Tirupur, India, the project maps different dyeing methods from synthetic to natural and emerging alternatives to reveal their water dependencies, treatment pathways, and systemic interconnections. Rather than offering a fixed solution, the platform invites users to explore, simulate, and reflect on how individual decisions ripple across ecological and industrial systems. It transforms complex environmental data into an interactive visual language encouraging dialogue, collaboration, and more informed futures for colour and water.