Here's an excerpt from the poem that contains a simile:
"The sea is calm tonight.
The tide is full, the moon lies fair
Upon the straits; on the French coast the light
Gleams and is gone; the cliffs of England stand,
Glimmering and vast, out in the tranquil bay.
Come to the window, sweet is the night air!
Only, from the long line of spray
Where the sea meets the moon-blanched land,
Listen! you hear the grating roar
Of pebbles which the waves draw back and fling,
At their return, up the high strand,
Begin, and cease, and then again begin,
With tremulous cadence slow, and bring
The eternal note of sadness in.
The simile in this excerpt is:
"The tide is full, the moon lies fair / Upon the straits; on the French coast the light / Gleams and is gone; the cliffs of England stand, / Glimmering and vast, out in the tranquil bay."
This line uses the word "like" to compare the moon to a light that "gleams and is gone," creating a visual image of the moon's soft, ephemeral glow.
Let me know if you'd like me to analyze another excerpt of the poem!