who is crystal

As I walked the lonely beach one morning on my vacation, I saw this bench.

And I wondered. Who is Crystal? Where has she gone? 

Does she still come here to sit and watch the sea?

If I sit, will she join me? Will I feel her presence?

Like a long lost friend? One who has passed on but still hovers to share the beauty? To watch the endless changing of the tides?

Yes, who is Crystal? I wonder.