Golden Bridge from Da Nang (Hanoi)

Hello everyone,
Actually my question is about Da Nang not Hanoi, but I didn't find any Da Nang community, so sorry for bothering you ))

I ll be in Da Nang in mid of September, I would like to know how is it possible to visit the Golden Bridge in Ba Na Hills? Based on my research I see day tours which include themed park and other places, but actually I would like to see the bridge only and return to Da Nang early.
Can I get a taxi and find the way by my own in Ba Na Hills? Are there any other ways?

Thank you
Cheers
Edita