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.