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that's a sad reality, we will have to appreciate it while we can!

I didn't mention this to illicit an emotion of sadness. In order to make something of beauty, it is necessary for something else to change. The sea level used to be 200 meters lower 20,000 years ago. That would mean that where you were lounging was on top of a hill at that time. In 50 years, your grand-daughter will be floating on another beach somewhere enjoying its beauty.