...and you never know what you'll see!
Here's an "aerial view" of a small, high tidepool that's drying up.
When I bent down for a closer look, many tiny salt crystals were visible on the bottom and floating on the surface:
An even closer view revealed their wonderful shapes:
Some of the crystals were larger — in the photo below, the largest crystal was at least several millimeters across. I don't know anything about crystal formation, but it looks like the crystals might be developing an octahedral geometry (8-sided; 4 triangular faces up and 4 down) .