3 dc have been invited to a swimming party in a 25 metre normal pool with no slides/wave machine etc but there is an inflatable. Dh is working away and I can't go in the pool because AF is visiting. But it's ok as my dad volunteers to take them. Dc are so excited and the birthday child is all hyped up etc. Then I find out that no other parents are going in the pool, just my dad. Not even the birthday child's parents. I'm a bit uneasy about this tbh but they are so excited I feel really mean about backing out at this point. So does anyone recommend what kind of thing to send them with like arm bands etc for my own peace of mind? I've seen children wear things that look a bit like a life jacket, are they any good? Youngest can't swim, middle one can swim about 5 metres and eldest regularly swims in the river so not worried about him, just the 2 younger ones. I know realistically they will be fine and there are loads of parents who take 3 dc with only one who can swim all the time.