On the low beach, to leeward of the cliff,
They leapt, and piled their beds, and lit their fires:
Castor meanwhile, the bridler of the steed,
And Polydeuces of the nut-brown face,
Had wandered from their mates; and, wildered both,
Searched through the boskage of the hill, and found
Hard by a slab of rock a bubbling spring
Brimful of purest water. In the depths
Below, like crystal or like silver gleamed
The pebbles: high above it pine and plane