Start with the thing nobody tells you: the pavements are motorbike parking. Not occasionally β structurally. Add plastic stools, cooking fires and delivery bikes, and the practical effect is that pedestrians walk in the road. If you are pushing a stroller or a wheelchair you will be in the traffic lane for most of every block, with high uneven kerbs and no dropped edges. This is the defining accessibility fact about Ho Chi Minh City and it does not have a workaround.
Crossing the road is the second shock. There are no gaps. You step off the kerb and walk at a slow, absolutely constant pace and the motorbikes part around you; the fatal instinct is to stop or jump back. With a parent who is unsteady or a child, take their arm, walk on the upstream side so you meet the bikes first, and use the signalised crossings on Nguyen Hue, Le Loi and Le Duan where they exist. Global Affairs Canada warns that road safety is poor throughout Vietnam and that fatal accidents are frequent, and it is not being dramatic.
What genuinely works: Grab and Xanh SM. The fare is fixed in the app before you get in, so there's no negotiation in front of your mother-in-law, you can request a seven-seater, and you never have to pronounce the destination. Budget on using them for almost everything. Metro Line 1 is the pleasant surprise β it opened in December 2024, it's air-conditioned, and the stations are new-build with lifts and escalators, which makes it far easier going than the streets above. Don't assume every lift is in service on the day; check at the station if someone in your group cannot manage stairs. It also only runs one direction, out east through Thu Duc, so it solves a corridor rather than the city.
Heat is constant. There is no cool season here, unlike Hanoi: the dry months from December to April sit in the low-to-mid thirties, and the wet season from May to November adds humidity plus a violent hour-long downpour most afternoons. Build the day around it β sights until late morning, an air-conditioned mall or a long lunch through the worst of it, back out in the late afternoon. The shopping centres in District 1 are the reliable network of clean toilets, cold air and seating; squat toilets are still common everywhere else.
On the sights themselves: the War Remnants Museum and the Reunification Palace are both multi-storey and both have lifts, but ask at the entrance rather than assuming which one is running. The Palace's grounds are flat and easy. Ben Thanh Market is narrow, packed, unairconditioned and impossible with a stroller β send one person in and let the rest sit outside. Cho Lon is flat but the temple thresholds are high, deliberately so. The Cu Chi tunnels involve crawling; anyone can skip that and still enjoy the site above ground, and the river boat gets you there without two hours in a van.
Finally, the journey. There is no nonstop from Pearson, so you're looking at twenty to twenty-four hours with one connection through Asia, then immigration at Tan Son Nhat, which can be slow. Print the e-visa. If you're travelling with an elderly parent, pay for the connection with the longer layover rather than the tight one.