Managing Irukandji Syndrome is important for many emergency departments, particularly in North Queensland. The recent discovery of irukandji jellyfish off Fraser Island, and with four people hospitalised in the past weeks as a result of irukandji stings, serve as a timely reminder of the danger presented by these and other marine stingers, and a warning to EDs outside of traditional stinger areas that they may become more prevalent. Despite the low incidence, the condition is associated with possible life-threatening cardiovascular complications that make it difficult to manage.