Translation of "Caverned" in French

Thrice roar the caverned shore-cliffs, thrice the spray / whirls up and wets the dewy stars on high.

Trois fois le flot mugit sous la roche profonde ; / trois fois jusques aux cieux la mer lance son onde.

His ships he hides within a sheltering cove, / screened by the caverned rock, and shadowed by the grove, / then wielding in his hand two broad-tipt spears, / alone with brave Achates forth he strayed.

À l'abri des rochers, et sous de noirs ombrages, / il laisse ses vaisseaux ; et, deux traits à la main, / suivi du seul Achate, il se fraie un chemin.