The best option to visit the Son Tra mountain is to rent a motorbike from Da nang for a day (about 5$ USD) and drive by yourself around the peninsula.

Dray Nur Falls
To get to Buon Ma Thuot you can take a day/night bus from Nha trang, Danang or Ho Chi Minh
One Response
Really cool road! Bring a lunch and spend the whole day on the road of this mountain! Pretty impressive and huge Buddha statue !