Abroad at the moment. It's the English and Irish families doing it.
Leaving their DC, between ages of about 2.5 to 6 or 7. Alone in the baby pool. Some have armbands, some not. Point is, they shouldn't be left alone
Some of the parents are obviously on sunbeds and in view of the pool. Others are nowhere to be seen!
My DC can swim but I'd never leave them unattended.
I felt awful every time I had to leave the pool with DC, leaving so many kids unattended 
The lifeguard is also a bit odd and not always there.