This is an entry in the #fiftywords story challenge by @miniature-tiger. The current theme is "wave".
Check out @miniature-tiger's post: @miniature-tiger/fiftywords-stories-round-up-and-theme-for-weekdays-3-wave
The story is exactly 50 words long.
“It was just a holiday romance”, their parents said. Like the initials scratched in the sand with a driftwood stick, the day they met, wiped away by an errant wave, “it won't last,” they said.
Sixty years later they wave at their great grandchildren, playing in the sand, and smile.