A night on Ha Long Bay, lantern evenings in Hoi An, a motorbike seat through Saigon. Tell me the shape and I'll price every leg live.

Once a lunar month Hoi An switches off its street lights. Paper boats on the Thu Bon, silk lanterns overhead - one evening worth timing the trip around.
Indian passports need an e-visa for Vietnam - there is no visa on arrival. I file it, track it, and check the name matches your ticket letter for letter, because that is what gets people stopped at check-in.
The one rule worth remembering: September to November, skip the central coast. Same country, same week, and the north or the south will give you the trip Hoi An can't.
Mild north, dry centre, dry south. Tết lands 6 Feb 2027 - book early, much shuts for a few days.
Da Nang and Hoi An at their best. Hot and humid north, rainy season in the south.
Hoi An floods most Octobers. The north is cool and clear - go there instead.
Sapa near freezing, Phu Quoc and Saigon dry and bright.