Thanks, Drew! Here's a translation for the song:
There in the beauty of Molokaʻi
In the fearful cliffs of the windward side
The sweet voice calls
In the evening hours
In the cold wind of the valley
Chorus:
O hīhīwai tra la la
Come back to me
To the lush and beautiful land of Wailau
So glorious
Is the waterfall Kahiwa
And the mountain, ʻOlokuʻi
Let us all sing together
The song of the land
Of the never fading beauty of life eternal
The wind is my voice
The sea is my heart
The lush and beautiful land is my whole body