The best way to explore the famous and not-so-famous corners of Bali is by your own transport.
The south-north-south route is one of many rewarding journeys and takes in most sights in the central mountains of Bali:
South Bali/Ubud - Jatiluwih - Bedugul - Munduk - Lovina - Kubutambahan - Mt. Batur - Bangli - Pura Besakih - Rengan - Amlapura.