What stories can photographs reveal about the hidden connections between water, ecosystems and human health?
The Walk of Water Photostory Contest 2026/2027, led by Onewater, UNESCO’s World Water Assessment Programme, UNEP and partners, invites photographers worldwide to explore the theme “Out of Sight” through compelling visual stories about water, health and the environment.
This sixth edition places a special focus on wastewater, highlighting the people, systems and innovations working behind the scenes to protect public health and ecosystems. Entries can also explore wider connections between water and well-being, including clean rivers, healthy wetlands, safe drinking water, sanitation, cultural practices and water-based recreation.
How to participate
Submit 5–10 photographs, accompanied by a written story of 2,500–8,000 characters and short captions for each image. Both emerging and experienced photographers are welcome, with dedicated global and youth award categories for photographers aged 25 or under on 1 December 2026.
Prizes and recognition
The contest offers a total prize pool of US$9,000. Winning and selected photo stories will also be featured on the Onewater website, showcased in the 2027 Walk of Water exhibitions and shared through international media partners.
- Submission period: 1 October – 30 November 2026
- Deadline: 30 November 2026, 23:59 CET
- Winners announced: January 2027
Have a story to tell? Submit your photo story here and help bring the unseen connections between water, nature and human health into focus.
Banner Image by Keyur Tandel on Unsplash