Cusco is one of the most memorable cities in Peru. It is also one of the highest. Many travelers notice the elevation soon after they arrive, and a little planning can make those first days easier.
This guide explains altitude sickness in Cusco in plain language. You will learn why the city's elevation matters, which symptoms to watch for, and what the CDC recommends to lower your risk. You will also learn when symptoms call for more care. This article is general information. Talk with a healthcare provider before your trip, especially if you have a health condition or take medication. They can give advice that fits your health history.
The CDC's guide to high-altitude travel lists Cusco at about 3,350 meters, or 11,000 feet. At that height, the air holds less oxygen with each breath. Your body needs a few days to adjust.
The CDC says any traveler who is not used to altitude is at risk when sleeping at 2,450 meters (8,000 feet) or higher. Cusco is well above that line. Being used to exercise does not mean your body is used to altitude, so plan for it even if you are young and active.
The most common form of altitude illness is acute mountain sickness, often called AMS. According to the CDC, its main symptom is a headache. Other symptoms can include:
The CDC compares AMS to a hangover.
The CDC gives a clear rule. Never go higher to sleep while you have symptoms of altitude illness. If symptoms get worse despite rest at the same elevation, go to a lower elevation. Tell your trip leader right away if you feel unwell, especially if you have trouble breathing, confusion or trouble walking. These can be signs of a more serious problem that needs medical care.
The CDC recommends a few simple steps:
If you have a chronic health condition, are pregnant or take regular medication, ask your provider how altitude could affect you. Share these details with your healthcare provider well before your trip, and follow their advice about whether and how to travel. Let your program know about any needs that could affect your participation, so trip leaders can plan with you.
Arrival days are often long. Plan a calm first afternoon in Cusco. Eat light meals, rest, and save walking tours for later. Keep a simple note of how you feel each morning, so you can tell if symptoms improve or get worse.
On a dental service learning trip with Smiles Movement, students shadow local dental professionals at mobile clinics and help with oral health education for children in partner communities. Trip leaders guide the group throughout the week, so you have support if you feel unwell. Ask for the current Cusco itinerary to see how the schedule is planned. For what to expect overall, read our article on your first dental trip. Our guide on whether volunteering abroad is safe covers broader planning.
Altitude is part of what makes Cusco unique, and good preparation helps you enjoy it. If you want to learn alongside local dental professionals in the Andes with trip leaders by your side, Smiles Movement can help. Fill out the form or download our brochure to get more information about upcoming programs and trip dates.
The CDC lists Cusco at about 3,350 meters, or roughly 11,000 feet, above sea level.
A headache is the most common first sign. Nausea, dizziness, tiredness and loss of appetite can also appear.
You can lower your risk with gradual ascent, light activity and no alcohol in the first 48 hours. Talk with a healthcare provider before your trip about other options.