Valmiki Ramayana Kishkindha Kanda Sarga 41 Shloka 24
Original Shlokaद्वीपस्तस्यापरे पारे शतयोजनमायतः। अगम्यो मानुषैर्दीप्तस्तं मार्गध्वं समन्ततः।।4.41.24।।
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तस्य its, अपरे पारे on the other side, शतयोजनमायतः stretched over a distance of a hundred yojanas, मानुषैः for human beings, अगम्यः inaccessible, दीप्तः glittering, द्वीपः island, तम् that place, समन्ततः all over there, मार्गध्वम् explore.
'Beyond this, on the other side of the sea stretching over an area of a hundred yojanas is an island difficult to reach for humans. Which you may explore.