Fiji: The Bouma Waterfalls in Fiji's Bouma National Heritage Park on Taveuni Island are three separate falls, accessible by hiking from the park's visitor centre through the tropical forest. There are natural swimming holes beneath each waterfall.
Nautilus Undersea Suite at The Poseidon Resort, Fiji. Normally I don't post stuff like this, but wow. this is officially my dream vacation spot. I could spend hours lying in bed watching the fish swim by!