Valmiki Ramayana Kishkindha Kanda Sarga 40 Shloka 35

ततः then, सुभीमान् fierce, समुद्रद्वीपांश्च islands of the ocean, समुद्रं च and the ocean, अनिलोद्धतम् swept by wind, क्रोशन्तम् roaring, ऊर्मिमन्तम् stirred up by waves, द्रष्टुम् to see, अर्हथ it is proper for you.

'Then you may continue your search in the frightening islands of the sea as well as the sea which roars when stirred up by the wind.