we were recently in majorca and watched a father with two small children. no mother around. they were about 5 and 6 both non swimmers. the father lay on the beach, bags and other items obscuring his view of the sea, even had he lifted his head, which he didnt. he drank beer and the children were in the sea up to their necks at times. at one point the small girl came out of the sea to say her brother was in trouble and he lifted his head and gestured for the boy to come in closer. he then lay back down. at that point i walked down to them and tried to engage them in conversation (they were british) both stared but no response. it was 34 degrees they were very pale, but not wearing t shirts and cream was only put on once when they arrived. i couldnt relax and kept watch as others nearby did too. The tutting was almost audible. i knew i or someone should have said something to him, but he had been quite sharp with the children and had been drinking so knew anyone approaching him would get the same, or worse , so i kept a watch on the children until they all left. despite his harsh attitude towards them they constantly sought affection, something i have often seen during my career working with children. I know i should have said something, but he was a big angry man and i am short, not strong and dont run very fast. Its just unusual to see parents behaving like this these days, perhaps 50 years ago it was more common. What would you have done/said? If anything.