Abstract Across public health and healthcare practices, we signal low awareness and little urgency for Planetary Health among health professionals as well as lacking or lagging implementation of planned policies. Planetary health requires a ‘just do it’ mentality with a transdisciplinary and reflection-in-action approach. There is a need for a bottom up movement, but HOW to get started and HOW to persevere against all odds? This 25 minute pecha kaucha session is aimed at facilitating transdisciplinary learning for planetary health action. We will start with a brief introduction to the concept of Planetary Health, followed by two short presentations on two metaphorical work processes underlying the startup of a flowering community garden and the preparations for a delicious Italian lasagna. The second half of the session is dedicated to a creative exercise with the audience, generating multiple metaphors in small groups using picture cards, paper drawings. We finalize this session by collaboratively building a visualised sea with transdisciplinary waves of metaphorical innovations that, instead of litter and pollution, make our beaches and shores stronger foundations protective of our planetary life. Key messages • Planetary health requires a ‘just do it’ mentality with a transdisciplinary reflection-in-action approach. • Metaphorical reasoning visualizes social reality and boosts Planetary health mentality, community spirit and transdisciplinary action.