Just wanted to send out a warning about these ugly little blighters. They lie in the sand in warm, shallow waters, just where kids like to play. They have 3 venomous spikes sticking out of their backs which inject poison if you stand on them. We have just been to the Dorset coast and dd1 (10) stood on one. She came out of the water thinking she had cut herself, and then quckly became almost hysterical. I couldnt see anything on her foot so poured some cold water on it (the worst thing you can do). Only way she calmed down was by my taking her to the first aid point. By the time we had hobbled a short distance her heel was swelling and blotchy. Treatment was to put her foot in as near to boiling water as possible for 20mins.I had no idea about these fish, so wanted to let people know, my dd coped as she is old enough but it would be awful if a toddler got stung. Hope no one does.