swimming lessons are a must I reckon.

Besides the magna latch gates I think there is some sort of alarm that you can get that sits in the water and goes off when it senses something entering the water IYGWIM

We have a pool and have 3 entrances/gates to it and I am scared out of my mind cause DF and my older kids have a tendancy to prop the gates open sometimes. We do have keys to lock the gates but I'm too scared to JIC a kids scrambles over the fence and someone's moved the keys - which in our house is very likely.