Originally Posted by
SK AAR
2 days in Hue and 4 days in Hoi An. No reason to stay in Da Nang with your interests - you can visit on a day trip from Hoi An if you really want.
3 and 3 I'd say. Hue was surprisingly good last year. You can easily spend two days around the city and for the last day you can go here
https://news.yahoo.com/vietnams-city...amp;soc_trk=ma
And there is no need to spend all three days in Hoi An. One day is sufficient and you can spend two days booking tours like boat tours and exploring Marble Mountains.
Last advice - book a train ticket from Hue to Hoi An. It is one of the best/memorable train rides, track follows the coastline.