Nusa Penida is the largest island in the group of islands to the east of southern Bali. Nusa Penida is famous for its rugged landscape, unreal cliffs, stunning vistas, blue water, huge pelagic marine life and coral reefs, and authentic Balinese culture.
The Travel Lush gives a good run down on this gorgeous island, however a few not to miss attractions include the gorgeous beach Crystal Bay, not only is this beautiful for swimming and sunset, it is a dive site famous for Mola-Mola sightings. You can also see Manta Point another dive site famous for the Manta Rays that frequent the area for feeding. From the cliff top you can see the manta rays swimming around close to the surface.
The view of Bali's Mt. Agung in the distance.
Crystal Bay has this stunning temple and equally stunning beach and sunset view.