Okay, since you have decided to go, just to share my planned itinerary from Hanoi to Saigon. Of course, you would be heading the opposite way.
1) Hanoi
- HW 1A
2) Vinh (292km, LP199)
- HW15 (beautiful ride)
- Phong Nha Cave
3) Dong Hoi (197km++, LP203)
- HW 1A
- DMZ (40km)
- Vinh Moc Tunnels
- Hamburger Hill
4) Hue (172km, LP215)
- HW 1A
- Citadels, pagodas and palaces, perfume river
5) Bach Ma National Park, hill station (1450m, 40km, LP232)
- HW 1A
- Hai Van pass, beautiful roads (no motorbikes allowed in the tunnel)
- Ba Na hill station
- Monkey Mountain
- Marble M