The Ho Chi Minh Mausoleum — requires queuing, a dress code, and visiting hours that change frequently. The mausoleum is closed on Mondays and Fridays and for extended periods annually for maintenance. Unless you have a specific historical interest, the time is better spent in the Old Quarter. The nearby Ho Chi Minh Museum is more informative and has no queue. Guided bus tours of the Old Quarter — you see the streets from a window. Walk them instead.

The Water Puppet Show — genuinely interesting as a cultural form but the tourist performances at Thang Long Water Puppet Theatre are short (about 50 minutes), loud, and heavily attended by large groups. If you want to see it, book in advance — but it is not essential on a 2-day visit. Rooftop bars in the Old Quarter — expensive, touristy, and the views of a medium-density Vietnamese city are not their strongest selling point. The bia hoi corner at street level is infinitely more interesting.

Bai Dinh or Perfume Pagoda day trips — both are 2+ hour drives from Hanoi and are best suited to travellers with a specific interest in Buddhist pilgrimage sites. For most visitors, the time is better spent in the city. The Army Museum — genuinely interesting but leans heavily on the Vietnamese military perspective. If you want context on the war, the Vietnamese Women's Museum (Day 1) provides it with more nuance and humanity.

Very safe by international standards. The Old Quarter is busy and well-lit until midnight or later. The main precaution is the same as any city: keep your phone in your pocket rather than in your hand, and use a bag that closes securely. Petty theft from open bags can occur in crowded areas. Violent crime against tourists is extremely rare. Solo travellers, including solo women, consistently report feeling safe walking Hanoi at night.

This is genuinely the question most first-time visitors to Hanoi ask, and the answer is simple once you understand the system: walk slowly and steadily into traffic. Do not stop, do not run, do not wait for a gap. The motorbikes will flow around you like water around a rock — they have been doing this their entire lives and are very good at it. The mistake is stopping suddenly or moving unpredictably. Pick a gap, step off the kerb, and walk at a measured pace. You will be fine within two crossings.

Grab (the Asian equivalent of Uber) is the simplest option — download the app before you arrive, prices are fixed and shown before you book, and there is no language barrier or meter dispute. For short distances within the Old Quarter, walking is almost always faster than any vehicle in traffic. Mai Linh taxis (green) and Vinasun taxis (white) are reliable metered alternatives if you prefer not to use an app. Avoid any taxi that approaches you proactively — always hail from the pavement or book via app.

Two days is enough to feel Hanoi properly if you follow the principle of depth over breadth. It is not enough if you try to see every temple, museum, and attraction on the tourist circuit. The travellers who enjoy Hanoi most on two days are those who walk slowly, eat at street level, and allow the city to happen around them rather than moving through it like a checklist. Three days allows you to relax further — to sit somewhere for two hours rather than one, to take a morning off, to revisit the lake at a different time of day.