The 10-Day Peru Itinerary: The Health-Smart Version (From an ER Physician)

A great Peru itinerary is not about cramming in more ruins. It is about sequencing elevation correctly so you actually enjoy them. The single biggest mistake I see in travelers returning from Peru is flying straight into Cusco at 11,150 feet and trying to hike the same day. Build your trip low to high: start in Lima at sea level, then drop into the Sacred Valley (around 9,420 feet) for two nights before sleeping in Cusco, and save Machu Picchu (7,970 feet, lower than Cusco) for the middle of the trip. Acute mountain sickness affects an estimated 25 to 85 percent of travelers who ascend rapidly above 8,200 feet, according to CDC data. Start acetazolamide (Diamox) one to two days before you reach altitude, hydrate hard, and give yourself two real acclimatization days. Do that, and the itinerary below works beautifully.

This is a genuine day-by-day plan, not a generic list with a health paragraph stapled to the end. The health logic shapes the route itself: where you sleep, which day you climb, and when you start your medications.

Why elevation, not mileage, should drive your Peru plan

Peru's marquee sights sit at wildly different altitudes, and your body cares about the number on the elevation profile far more than the number of days you have. Lima is at sea level. The Sacred Valley towns of Urubamba and Ollantaytambo sit near 9,420 feet. Cusco is higher at 11,150 feet. Machu Picchu, counterintuitively, is lower than both at 7,970 feet. Lake Titicaca and Puno, if you add them, climb back up to 12,500 feet.

The rule of acclimatization is simple: above 8,200 feet, increase your sleeping elevation by no more than 1,600 feet per night, and build in a rest day every 3,300 feet of ascent, per Wilderness Medical Society guidance. A smart Peru route sleeps in the Sacred Valley first precisely because it is lower than Cusco. You see the same Inca sites, you are closer to Machu Picchu, and you sleep almost 1,800 feet lower while your body adjusts. That one sequencing choice prevents more ruined vacations than any pill.

The pre-trip health timeline (start this 6 weeks out)

Your Peru trip really begins weeks before departure. Six weeks out, confirm routine vaccines are current and ask a clinician about hepatitis A and typhoid, both of which the CDC recommends for most travelers to Peru because of food and waterborne risk. If your itinerary includes the Amazon basin (Puerto Maldonado or Iquitos), yellow fever vaccination is recommended and you may want proof for onward travel. Two to three weeks out, get your prescriptions handled: acetazolamide for altitude and an antibiotic plus loperamide for traveler's diarrhea are the two that matter most for the standard Cusco-Machu Picchu route.

Wandr's clinicians can review your specific itinerary and call any needed prescriptions in to your local pharmacy for pickup, so you are not scrambling for a travel-clinic appointment the week before you fly. For vaccines like hepatitis A, typhoid, or yellow fever, Wandr books your appointment at a partner pharmacy near you. Start with the free pre-trip health check to see exactly what your route requires.

Days 1-2: Lima, then fly to the Sacred Valley (not Cusco)

Land in Lima at sea level and spend your first night here. It breaks up the journey, lets you eat well in Miraflores or Barranco, and costs you nothing in altitude. This is also the moment to start your acetazolamide: the standard preventive dose is 125 mg twice daily, begun one to two days before ascent and continued for two to three days at altitude, per CDC and Wilderness Medical Society guidance.

On Day 2, fly Lima to Cusco (a short flight), then transfer directly down to the Sacred Valley without overnighting in Cusco. The drive from the Cusco airport to Urubamba drops you roughly 1,700 feet within an hour. You will feel the difference. Spend the afternoon gently: unpack, walk slowly, drink water, and skip alcohol. Mild headache and shortness of breath on exertion are common and expected on a first day at altitude. What is not normal is worsening headache, vomiting, or confusion, which I will cover below.

Days 3-4: Acclimatize in the Sacred Valley

These two days are the structural heart of a health-smart Peru itinerary, and they happen to be some of the best sightseeing of the trip. The Sacred Valley gives your body time to adapt while you explore Pisac's terraced ruins and market, the dramatic fortress at Ollantaytambo, and the salt terraces of Maras and the circular agricultural terraces of Moray. Everything here sits lower than Cusco, so you acclimatize passively while staying active.

Keep exertion moderate on Day 3 and build up on Day 4. Hydration matters more than most people realize: at altitude you lose water faster through increased respiration and the dry air, so aim for noticeably more fluid than you would at home. Coca tea is a local staple and is fine in moderation, though it is not a substitute for medication if you are prone to altitude sickness. By the end of Day 4, the vast majority of travelers feel markedly better than they did on arrival.

Day 5: Machu Picchu via Aguas Calientes

From Ollantaytambo, take the train to Aguas Calientes, the town directly below Machu Picchu. Here is the health upside of sequencing it now: Machu Picchu sits at 7,970 feet, lower than everywhere you have slept so far, so the citadel itself is the easiest altitude of your trip. You arrive already adapted, which means you spend the day amazed rather than nauseated.

Book your entry slot in advance, bring layers (mornings are cool, midday sun is intense), and carry water and snacks. If you plan to climb Huayna Picchu or Machu Picchu Mountain, those add real vertical effort, but at this elevation a well-acclimatized traveler handles them fine. Reapply sun protection: at this latitude and altitude, UV exposure is significantly stronger than most US travelers expect.

Day 6: Return to Cusco to sleep high

Now that you are acclimatized, Cusco at 11,150 feet is comfortable rather than punishing. Take the train and transfer back, and spend the late afternoon easing in. This is the correct day to sleep at the trip's high point because your body has had four nights between roughly 8,000 and 9,400 feet to prepare. Continue acetazolamide if you started it; you can typically stop two to three days after reaching your highest sleeping altitude once you feel well.

Keep the evening light. A common pattern I see is travelers feeling great after Machu Picchu, arriving in Cusco, and immediately overdoing it with a big dinner, drinks, and a late night, then waking up feeling terrible and blaming the altitude. Ease into Cusco and it rewards you.

Days 7-8: Cusco city and nearby ruins

Cusco is the cultural capital of the trip and deserves two unhurried days. Explore the Plaza de Armas, the Qorikancha temple, the San Pedro market, and the massive stonework at Sacsayhuaman just above town. These days are gentle on the body precisely because you sequenced the trip well. Eat thoughtfully here: traveler's diarrhea is the most common travel illness worldwide, affecting an estimated 30 to 70 percent of travelers depending on destination and season, per CDC data, and Peru's street food scene is both a highlight and a risk.

Stick to steaming-hot cooked food, peel your own fruit, and be cautious with tap water, ice, and raw salads. If you do get hit, this is where your prescription pays off: for moderate to severe traveler's diarrhea, a short antibiotic course combined with loperamide can shorten illness from days to roughly a day, according to clinical guidelines. Carry both so a bad meal does not cost you a travel day.

Days 9-10: Choose your add-on, then fly home

With altitude behind you, your last two days are flexible. Three popular extensions, each with a health note:

• Rainbow Mountain (Vinicunca): spectacular but brutal, topping out above 16,400 feet. Only attempt it if you have acclimatized well and feel strong; go with a guided group, start early, and turn back if symptoms escalate.
• The Amazon (Puerto Maldonado): a complete change of scene at low elevation. This is where yellow fever vaccination and malaria prevention come into play, so plan those before you travel.
• A slow Cusco wind-down: more food, more markets, and a buffer day in case weather or strikes disrupt train schedules.

On Day 10, fly Cusco to Lima and connect home. If you saved the Amazon for the end, build in extra buffer; missed connections from the jungle are common.

Altitude sickness: the symptoms that change the plan

Most altitude sickness is mild and self-limiting. The job is recognizing when it is not. Acute mountain sickness shows up as headache plus at least one of nausea, fatigue, dizziness, or poor sleep, usually within 6 to 12 hours of arriving at altitude. The treatment is to stop ascending, rest, hydrate, and use acetazolamide; most people improve within a day or two.

The two dangerous syndromes are rare but require immediate descent. High-altitude cerebral edema (HACE) presents as confusion, loss of coordination, or a stumbling walk, and high-altitude pulmonary edema (HAPE) presents as breathlessness at rest, a wet cough, and extreme fatigue. As an ER physician, my rule is blunt: if someone cannot walk a straight line or is breathless sitting still, that is a descend-now situation, not a wait-and-see one. Cusco and the Sacred Valley both have medical facilities and oxygen, and descent is the definitive fix. For the full picture, read our altitude sickness guide and the Diamox dosing breakdown.

What this itinerary deliberately gets right

Compared with the typical Peru plan you will find online, this version makes three health-driven choices on purpose. It sleeps in the Sacred Valley before Cusco, so your highest sleeping elevation comes after several nights of adaptation. It places Machu Picchu before the highest nights in Cusco, using the citadel's lower elevation as a soft landing. And it front-loads the prescription work weeks before departure, so altitude medication and a traveler's diarrhea kit are in hand rather than improvised. None of this costs you a single sight. It simply orders them so your body keeps up.

Wandr's clinicians can match acetazolamide and a traveler's diarrhea plan to this exact route and call them in to your local pharmacy for pickup, and book any vaccines you need at a partner pharmacy near you. Get your altitude and stomach prescriptions sorted before you fly, and pair this plan with our full Peru travel health guide for the medical detail behind every day.

Frequently asked questions

How many days do you need for a Peru itinerary with Machu Picchu? Ten days is the sweet spot for a Cusco, Sacred Valley, and Machu Picchu trip with proper acclimatization. You can do it in 7 days, but you lose the buffer that prevents altitude sickness. Fewer than 6 days forces rushed ascent, which raises your risk of acute mountain sickness significantly.

Should I stay in Cusco or the Sacred Valley first? Stay in the Sacred Valley first. At roughly 9,420 feet, it sits nearly 1,800 feet lower than Cusco's 11,150 feet, so you acclimatize while sleeping at a gentler elevation. Sleep your highest nights in Cusco later in the trip, after several days of adaptation.

When should I start altitude medication for Peru? Start acetazolamide (Diamox) one to two days before you reach altitude, at the standard preventive dose of 125 mg twice daily, per CDC guidance. Continue it for two to three days after reaching your highest sleeping elevation, then stop once you feel well. A clinician can confirm the dose is right for you.

Is Machu Picchu high enough to cause altitude sickness? Machu Picchu sits at 7,970 feet, which is lower than Cusco and the Sacred Valley. If you have already acclimatized in the valley and Cusco, the citadel itself is the easiest altitude of the trip. Travelers who fly into Cusco and rush to Machu Picchu the same day are far more likely to feel ill.

Do I need vaccines for a standard Peru itinerary? For the typical Cusco and Machu Picchu route, the CDC recommends being up to date on routine vaccines plus hepatitis A and typhoid because of food and waterborne risk. Yellow fever vaccination is recommended only if you add the Amazon basin. Confirm your specific needs with a clinician before you travel.

What is the most common illness on a Peru trip? Traveler's diarrhea is the most common, affecting an estimated 30 to 70 percent of travelers depending on destination and season, per CDC data. Altitude sickness is the second. Both are largely preventable with sequencing, hydration, food caution, and the right prescriptions in hand.

Can I get altitude and traveler's diarrhea prescriptions before my trip? Yes. Wandr's clinicians review your itinerary and call prescriptions in to your local pharmacy for pickup, so you carry your medications from home rather than searching for a pharmacy in Cusco. Start with the free pre-trip health check to see what your route requires.

Medical disclaimer: This article is for general educational purposes and reflects general clinical guidance as of 2026. It is not a substitute for individualized medical advice. Altitude tolerance, medication suitability, and vaccine needs vary by person and itinerary. Consult a licensed clinician about your specific health history and travel plans before starting any medication.

Sources: Centers for Disease Control and Prevention, CDC Yellow Book (Travel-Related Infectious Diseases: Altitude Illness; Travelers' Diarrhea); CDC Travelers' Health destination page for Peru; Wilderness Medical Society Clinical Practice Guidelines for the Prevention and Treatment of Acute Altitude Illness.