We made it to Huế, which was once a capital of Vietnam. We were here for the music festival as well!
The best way to explore Huế, in our opinion, is by renting a scooter for $5 USD/day. Other options such as a tourist boat that will take you from place to place is available, but you are always among a tourist horde rather than meandering at your own place away from the crowds.
Although that being said, we experience some harsh squealing from our rental and we weren’t sure if we were going to make it home! Make sure you get the name and phone number of the place you get your rental from in case you need assistance.