I find it hard to imagine how a swimming pool could be cold enough in a hot climate for this to be an issue for anyone healthy. If it's hot for more than a coup

I find it hard to imagine how a swimming pool could be cold enough in a hot climate for this to be an issue for anyone healthy. If it's hot for more than a couple days, the pool water will start to warm up too. I've heard of this concern more in the context of much larger bodies of water like the ocean or snow-fed mountain lakes, which can stay cold a lot longer than a pool by virtue of their size (and in the case of the latter, a continuous influx of very cold water).