Sweat-proof Sunscreen?

We have some lovely sweat proof sun screen for these humid islands, but today I am beginning to wonder what exactly sweat proof means...when it was time to lather up after the brief tropical rain storm, we were both dripping with sweat-plural drips, mind you! It made the sun screen into a slimy-mushy concoction, and so far it seems to have resulted in a rather stripey sun tan for Lewis. I guess sweat proof implies that you start sweating AFTER the sun screen application!

Other than the sweat issue, things are wonderful. Lewis is taking wonderful pictures, and I have completed an unprecedented number of logic puzzles!
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