Here is a list of destinations you should visit in Da Nang – a beautiful city which is only 30 km from Hoi An. Destinations are listed on the way from Hoi An to Da Nang.
The Marble Mountains (Vietnamese: Ngu Hanh Son)
Google Maps: https://goo.gl/maps/KCXMn12PpZ62
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d454980-Reviews-The_Marble_Mountains-Da_Nang_Quang_Nam_Province.html
My Khe Beach
Google Maps: https://goo.gl/maps/KCXMn12PpZ62
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d7687457-Reviews-My_Khe_Beach-Da_Nang_Quang_Nam_Province.html
Da Nang Museum of Cham Sculpture
Google Maps: https://goo.gl/maps/o4HDDe3FFg72
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d454979-Reviews-Da_Nang_Museum_of_Cham_Sculpture-Da_Nang_Quang_Nam_Province.html
Son Tra Peninsula (Monkey Mountain)
Google Maps: https://goo.gl/maps/UvgXWk1ZHDs
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d7061760-Reviews-Son_Tra_Mountain_Monkey_Mountain-Da_Nang_Quang_Nam_Province.html
Linh Ung Pagoda (Lady Buddha)
Google Maps: https://goo.gl/maps/FHgDD8Y1nRQ2
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d5531576-Reviews-Lady_Buddha-Da_Nang_Quang_Nam_Province.html
Ba Na Hills
Google Maps: https://goo.gl/maps/yYKPo9CGC8U2
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g298085-d2255351-Reviews-Ba_Na_Hills-Da_Nang_Quang_Nam_Province.html
Hai Van Pass
Google Maps: https://goo.gl/maps/8MMXFjCWMyL2
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g293921-d455407-Reviews-Hai_Van_Pass-Vietnam.html
Bach Ma National Park
Google Maps: https://goo.gl/maps/hFVjCN89s2Q2
TripAdvisor: https://www.tripadvisor.com/Attraction_Review-g293926-d562580-Reviews-Bach_Ma_National_Park-Hue_Thua_Thien_Hue_Province.html
Note: Bach Ma National Park is located in Thua Thien Hue province (not Da Nang city). But it is not very far from Da Nang (~65 km). So, a tour from Da Nang to visit both Hai Van Pass and Bach Ma National Park is a great idea.