Two things about Siem Reap have changed in ways that matter enormously if you are bringing parents, and neither is well covered online yet.
First, the airport moved. Siem Reap–Angkor International opened on 16 October 2023 and sits about fifty kilometres east of town — roughly an hour by road. The old airport, fifteen minutes from the Old Market, no longer handles the commercial traffic. After twenty-four hours in transit from Pearson with one or two connections, that final hour in the dark is the part that breaks people. Pre-book a hotel car so nobody is negotiating at a kerb at midnight with a tired eighty-year-old. Minibuses and taxis do run from the terminal, but arrange it in advance.
Second, the land border with Thailand is closed. Following the 2025 border conflict, Global Affairs Canada advises avoiding all travel within fifty kilometres of the Cambodia–Thailand border and states that land border crossings between the two countries are currently closed. Preah Vihear temple sits directly on that border, inside the exclusion zone. The classic overland Bangkok-to-Siem Reap route via Poipet is not an option. You fly in, and you plan day trips south, east and north — never northwest. This is the fastest-moving fact in this guide: check travel.gc.ca before you book anything.
Now the heat, because it governs everything else. Average high temperatures in Siem Reap do not drop below thirty degrees in any month of the year, and March to May regularly reaches the high thirties. The temples are open, unshaded, heat-radiating stone with very little shelter and few benches. The only workable schedule with an older parent or a small child is temples from first light to mid-morning, back to the hotel and the pool through the middle of the day, out again in the late afternoon. Do not try to push through midday. People faint doing it every day of the dry season, and the queue at the first-aid points is real.
Stairs are the honest problem. Angkor temples are pyramids — that is the entire architectural idea, a mountain rendered in stone — so climbing is built into most of them. The Bakan, the upper level of Angkor Wat, is a steep timber staircase with a handrail, a minimum age and an enforced dress code. Pre Rup, Ta Keo, the Baphuon and Phnom Bakheng are all steep ascents on uneven, worn, ancient stone with no consistent handrail and treads far narrower than a modern step. If you have a parent with dodgy knees or poor balance, they should not attempt any of those, and telling them so before you leave Canada is kinder than at the base of the stairs.
But a genuinely satisfying temple day is possible without climbing anything. The Angkor Wat west causeway is flat, and the outer galleries with the great bas-reliefs are all on one level, though the doorway thresholds are high and require a step over. The ground level of the Bayon, where the face towers loom above you, works fine. The Terrace of the Elephants is a long level walk. Preah Khan's central corridor is flat, cool and one of the best things at Angkor. Neak Pean is a boardwalk. Ta Prohm has had wooden walkways and platforms installed throughout to protect the stone, and those same walkways make it one of the most accessible temples in the park. That list is a full, real day. What none of it is, is certified step-free — surfaces are ancient, uneven and often sandy, so a wheelchair will need a strong pusher and a flexible plan.
On transport around the temples: the standard Cambodian remorque tuk-tuk is a trailer towed behind a motorbike, with a step up and open sides. It's fine for a steady adult and children love it, but it is awkward for anyone using a stick and impossible for a wheelchair. Hire a car with a driver for the day instead — the real argument is not the step, it's the air conditioning between temples.
Practical bits: toilets in the park are at designated blocks, not at every temple, so plan around them. Town itself is flat and easy, and the Old Market area and the riverside have proper pavements, better than most of Southeast Asia. With children, one big temple day plus one water day on the Tonle Sap works far better than two temple days — the tree temple and the boat are the two things they'll remember. And on landmines: Cambodia remains heavily affected by landmines and unexploded weapons, and mined areas are often unmarked. Global Affairs Canada says Siem Reap town and the Angkor temples are considered clear by the Cambodian government, but it names the River of a Thousand Lingas at Kbal Spean and the Phnom Kulen temple area among the places where risk remains — both of which are on the day-trip list. Keep everyone on marked paths and paved roads, and do not let a child wander into scrub for a photo.