I’ve developed a novel process that records the paths taken by microscopic creatures, and which for the first time, reveals the extent of their usually invisible activity. It generates images that are in some sense similar to those of radioactive decay, or atomic particle collisions, as they are seen using cloud chambers. The images here are generated by the microorganisms from a number of watery environments in my own garden and were made in my kitchen using an iPhone. Each sample has a unique signature of biological wavelengths and frequencies. Three very microbiologically active environments and one far less so.