The algae are a diverse set of organisms that have enormous but largely unexplored capacity for carbohydrate and natural product chemistry. In principle, they represent an amazing resource of new small molecule bioactives and new enzymes for industrial biotechnology. In the process of investigating this prospect, we were drawn to engage with the local angling community, who were concerned about fish-killing algal blooms in our local waterways. This in turn led to new and unexpected opportunities for discovery science as well as public engagement. This presentation will highlight the efforts of a chemistry lab to learn about algal biology.