In language of the beachcomber the mirror is the reflective sheen left on beach sand by the receding swash. It’s where the sanderlings forage. Always on the move, the mirror tracks the pulse of the surf and the turn of the tide. Here’s a good example from June 2016.
This is another example. It’s from April 2016, when Pacific beaches were awash with by-the-wind sailors, Velella velella.
The mirror keeps company with anyone who walks the beaches. I feature it a lot. Among past posts a favorite of mine is the single image in In That World from March 2016.
