Disclose the rock and hide (Patreon)

Encircled by the sea, a stony ledge
Lies at the breaker's edge.
The ebbing and the flowing of the tide
Disclose the rock, and hide.
Now like a granite lion crouching there
Its head is black in air,
And now the whelming waters in a night
Have stolen it from sight.

Photo credit: Petra Crane, taken in Gozo