2 weeks ago I went to Nusa Lembongan Island with some friends. It's an Island that's located just half an hour speed boat ride from Bali. We stayed there for 3 Days and 2 Nights.
I lived in Nusa Dua for 9 months and I've been to so many different parts of Bali. Having that experience, I can say that Lembongan is very different from Bali Island itself. It is still very raw and traditional. It's truly a gem, everything is so beautiful and natural. You will experience living in a village where people are very nice and welcoming. If you are a nature lover like me, be prepared to get mesmerized by the magical experience you will just about to encounter.