Indonesia has got thousands of islands,Bali is one of them and very beautiful island.
you can visit Ubud,ulun danu ,ulu watu temple,gitgit waterfall on Bali island.
From Bali you can visit nusa penida island,you will get early morning ferry from sanur port and return to Bali on same day.
on nusa penida you can visit klingking beach,broken beach,manta Ray Bay and lit more.
there is one more island Gili tarawang near Bali you can take ferry from padangbai port and visit this beautiful island,the island is comparitevely small and don't have any petrol or diesel vehicle only bicycle and Tanga.
near Gili tarawang there are two more Gili island Gili meno and Gili air.