Cusco sits at 3,400 metres. That is higher than any point in the continental United States outside a handful of peaks, higher than most European ski resorts, and high enough that a meaningful proportion of arriving visitors feel it within a few hours: headache, breathlessness on stairs, poor sleep, and occasionally nausea.
Almost everyone flies in from Lima, which is at sea level. The ascent takes an hour and twenty minutes. There is no gradual adjustment.
Why the first two nights decide the trip
Altitude sickness is not a function of fitness. Young, fit travellers get it as often as anyone. What helps is time, hydration, avoiding alcohol on the first evening, eating lightly and not attempting anything strenuous on day one.
What also helps, and is unusual to find in hotels anywhere, is supplementary oxygen. Several of the better Cusco hotels enrich the oxygen in their rooms, raising the effective altitude by several hundred metres while you sleep. Others have oxygen available on request. It makes a genuine difference to the first two nights and it is worth choosing for.
The other move, and the one most experienced visitors make, is to go down first. The Sacred Valley, forty-five minutes away at Urubamba, sits around 2,800 metres — six hundred metres lower than Cusco. Spending the first two nights there, then coming up to Cusco afterwards, is a far better acclimatisation profile and it puts you closer to the ruins and the Machu Picchu train.
The nine below are grouped accordingly.
Cusco, with oxygen
In the city, at full altitude, with rooms that soften it.
Palacio Nazarenas, A Belmond Hotel, Cusco occupies a former convent beside the cathedral with oxygen-enriched rooms, heated floors, an outdoor pool at 3,400 metres and Inca foundations visible in the structure. It is the best hotel in Peru.
Palacio Nazarenas, A Belmond Hotel, Cusco
Beside the cathedral · 5★ · $$$$
Oxygen-enriched rooms and an outdoor pool at 3,400m
Check availabilityMonasterio, A Belmond Hotel, Cusco sits in a 1592 monastery around a cloistered courtyard with a three-hundred-year-old cedar in the middle, oxygen-enriched rooms and a chapel still in use. It is the most atmospheric building in the city.
Monasterio, A Belmond Hotel, Cusco
San Blas edge · 5★ · $$$$
A 1592 monastery with a cloister and a working chapel
Check availabilityJW Marriott El Convento Cusco occupies a colonial convent near the Plaza de Armas with oxygen enrichment, a courtyard and a museum's worth of religious art on the walls.
JW Marriott El Convento Cusco
Near the Plaza de Armas · 5★ · $$$
Colonial convent with oxygen enrichment and Inca walls
Check availabilityPalacio del Inka, a Luxury Collection Hotel, Cusco sits in a restored sixteenth-century mansion on the plaza with a spa, a courtyard and a very good restaurant.
Palacio del Inka, a Luxury Collection Hotel, Cusco
Opposite Qorikancha · 5★ · $$$
Sixteenth-century mansion with a spa on the plaza
Check availabilityCusco, without
Still excellent, and worth knowing they do not enrich.
Inkaterra La Casona Relais & Chateaux occupies a colonial manor house on a small plaza with eleven rooms, painted ceilings and the most personal service in the city.
Inkaterra La Casona Relais & Chateaux
Plaza Nazarenas · 5★ · $$$$
Eleven rooms in a colonial manor with painted ceilings
Check availabilityCasa Cartagena Boutique Hotel & Spa sits in a restored mansion with a courtyard, a small spa and rooms that are among the largest in Cusco.
Casa Cartagena Boutique Hotel & Spa
San Blas · 5★ · $$$
Largest rooms in Cusco around a colonial courtyard
Check availabilityAntigua Casona San Blas occupies a house in the San Blas artisan quarter above the plaza, which is a steep walk up and the part of the city most worth wandering, with a courtyard and low rates.
Antigua Casona San Blas
San Blas quarter · 4★ · $$
Courtyard house in the artisan quarter above the plaza
Check availabilityThe Sacred Valley, for acclimatising first
Six hundred metres lower, forty-five minutes away, and closer to the ruins.
Tambo del Inka, a Luxury Collection Resort & Spa, Valle Sagrado sits on the Urubamba river with a spa fed by thermal water, gardens, and its own station on the Machu Picchu railway line, which means you board the train from the property.
Tambo del Inka, a Luxury Collection Resort & Spa, Valle Sagrado
Urubamba, Sacred Valley · 5★ · $$$$
Its own station on the Machu Picchu line, 600m lower
Check availabilityInkaterra Hacienda Urubamba occupies a working farm estate in the valley with adobe buildings, horses, its own vegetable gardens and views of the mountains. It is the most peaceful place to spend your first two nights in Peru.
Inkaterra Hacienda Urubamba
Urubamba, Sacred Valley · 5★ · $$$
Working farm estate with mountain views and adobe casitas
Check availabilityWhat we have left off
The budget hostels around the Plaza de Armas are excluded, and Cusco has a great many of them serving the Inca Trail crowd well. They are not hotels, and at 3,400 metres a first night in a dormitory with no heating is a poor introduction to a country you have flown a long way to see.
What to do, and in what order
Day one: nothing. Walk slowly around the Plaza de Armas, drink coca tea, eat lightly, sleep.
Then the city: Qorikancha, the Inca sun temple with a Spanish convent built on top of it, which explains the whole colonial project in one building. The cathedral. The San Pedro market.
Sacsayhuamán, above the city, has stonework of a precision that remains unexplained and is a steep walk or a short taxi.
The Sacred Valley: Pisac market and ruins, Ollantaytambo, Moray and the Maras salt pans. Two days rather than one.
Machu Picchu by train from Ollantaytambo or Urubamba, with a timed entry ticket booked well in advance and a circuit chosen at the time of booking. The rules change periodically; check the current system rather than assuming.
Practical notes
Cusco's airport takes flights from Lima and a few regional cities. Most flights are early in the morning because of afternoon wind.
May to September is the dry season and the best window: clear days, cold nights, and the busiest months. November to March is the wet season, with afternoon rain and much lower prices. The Inca Trail closes in February.
Bring layers. It can be 20 degrees in the sun and near freezing after dark in the same day.
Take medical advice about altitude before travelling, particularly if you have any cardiac or respiratory condition. Coca tea is traditional and mild; prescription options exist and should be discussed with a doctor.
Every hotel bookable in Cusco and the Sacred Valley
Questions people actually ask
Should you go to the Sacred Valley first?
If you can, yes. Six hundred metres lower makes a real difference and the valley is worth the time regardless.
Does the oxygen enrichment work?
It raises the effective altitude of the room while you sleep, which helps the first two nights considerably. It is not a substitute for taking it slowly.
How many nights before Machu Picchu?
Two at minimum after arriving, three if you are hiking. Do not fly in and go the next morning.
How many nights in total?
Five or six across Cusco and the valley, plus the Machu Picchu day.
