Three days: the classic
The three-day loop covers the big highlights — Heaven Gate, Dong Van, Ma Pi Leng and Du Gia — with roughly 100 to 130 km of riding per day. It suits travellers on a tighter schedule.
Four days: the full picture
The extra day adds Lung Cu Flag Tower and a boat trip on the Nho Que River, and it makes every day shorter and calmer. More photo stops, more village time, less rushing.
Our recommendation
If you can spare one more day, take it. If your time is tight, the three-day loop still delivers the moments people remember for years.