प्लवङ्गमाः monkeys, आप्लवन्तः here and there jumping, प्लवन्तश्च jumping about, गर्जन्तश्च roaring, सर्वभूतानि all creatures, आच्नित्यम् that which cannot be conceived in mind, असह्यंच impossible, अद्भुतम् marvellous, रोमहर्षणम् which is thrilling, सागरे in the sea, तत् that, सेतुबन्दनम् bridge constructed, ददृशुः witnessed.

The monkeys were jumping about here and there roaring (in joy). All creatures witnessed the bridge that was inconceivable, marvellous, thrilling, and impossible to build constructed in the sea.