This workshop, part of the Crossover programme funded by the Biochemical Society and the RSE Young Academy of Scotland, is a collaboration with Dr Jane Essex (Chemistry Education, University of Strathclyde) to explore an interdisciplinary way of co-designing a Sustainability Science Summer School for young people. Our collaboration supported the co-design of a programme of sustainability education days for young people with disabilities, their families and carers at Dolphin House, Ayr, during the summer school break in 2021.