When you arrive in Cusco, the best thing you can do is take your first day easy. Here we will organize the start of your trip so your body can adapt without complications and you can enjoy every activity. In this guide, we explain what happens with altitude, how to recognize the symptoms, and what to do from the very beginning so acclimatization becomes a natural part of your experience and not a problem.
Why is it important to acclimatize in Cusco?
Cusco is located at about 3,400 meters above sea level, which means there is less oxygen than at the coast. That is why, when we arrive, the body needs time to adapt, and if you do not take it easy, you may experience altitude sickness, also known as soroche. It is not serious in most cases, but it can be uncomfortable and affect your itinerary if not managed properly.
The most common symptoms are headache, fatigue, dizziness, nausea, or shortness of breath when doing simple efforts like walking uphill. That is why it is recommended to plan your first day with an itinerary that includes light activities, rest, and proper hydration. This way, your body adapts gradually and you can continue the rest of your trip without setbacks.
How many days are needed to acclimatize in Cusco?
When you arrive in Cusco, ideally you should allow between 24 and 48 hours for your body to properly adapt to the altitude. During that time, we organize light activities, short walks, and plenty of rest, especially on the first day. This is usually enough for most travelers before starting more demanding tours.
However, adaptation time can vary. Factors such as your age, physical condition, and especially where you are coming from play a role (it is not the same arriving from sea level as from another high-altitude city). Can you acclimatize in just one day? Yes, in some cases, but it is not the most recommended if you want to avoid discomfort. If you have limited time, your itinerary can be adjusted so the first day is very light and the impact is minimized.
Symptoms of altitude sickness in Cusco
When you arrive in Cusco, it is normal for your body to react to the altitude, especially during the first hours. That is why it is important to recognize the symptoms from the beginning so you know whether you need to slow down or rest a bit more.
Mild symptoms
These are the most common and usually appear on the first day: you may feel headache, mild nausea, and fatigue, as if you get tired more quickly than usual even when walking short distances. In these cases, the best thing to do is stay well hydrated, eat light meals, and take it easy.
More severe symptoms (less common)
In less frequent cases, you may experience difficulty breathing even at rest or intense dizziness that does not improve with rest. If you notice that symptoms persist or worsen, it is recommended to stop any activity, inform someone to seek help, and if necessary, look for medical attention to avoid complications.
Practical tips to acclimatize faster
When you arrive in Cusco, there are simple ways to help your body adapt better from the very beginning. That is why it is important to organize your trip with this in mind, but there are also key habits you can follow to feel well and avoid altitude sickness.
Day 1: Rest and light walks
On the first day, take it easy: transfer to your hotel, time to rest, and if you feel well, a short walk in flat areas. Avoid long climbs or demanding activities. If you do not follow this pace and start with intense effort right away, it is more likely that you will experience headaches, strong fatigue, or general discomfort that can affect the following days of your trip.
Constant hydration
Drinking water throughout the day helps your body process the lower oxygen levels more efficiently. The idea is to take small sips constantly, even if you are not very thirsty. If you become dehydrated, altitude sickness symptoms can worsen, especially headaches and fatigue.
Avoid alcohol and heavy meals
During the first hours, it is best to avoid alcohol and very greasy or heavy meals. Instead, opt for light dishes that are easy to digest. Alcohol can increase dehydration, and heavy meals make your body work harder than necessary, which can cause more discomfort or nausea.
Coca tea and natural remedies
Coca tea is one of the most commonly used allies at high altitude. You can drink it upon arrival or during the day to relieve mild symptoms and feel more stable. If you choose not to consume it, that is fine, but your adaptation may feel slightly slower compared to those who use it as support.
Preventive medication (consult a doctor)
If you prefer to be more prepared, you can consult your doctor about medications to prevent altitude sickness. It is a valid option, especially if you know you are sensitive to altitude or have a tight itinerary. Not doing so does not mean you will have problems, but it is better to be prepared, especially if your trip starts with demanding activities.
What to do on your first day in Cusco?
Your first day in Cusco should be planned so you can start exploring the city without overexerting your body. The idea is to stay active but at a gentle pace that helps you acclimatize without complications.
Light city tour
We can organize a short city tour in the afternoon, starting after you have rested for a few hours. The tour should include nearby stops and walks that do not require much physical effort. The most recommended tour usually includes Qorikancha, some viewpoints, and ruins close to the city. We avoid long routes or those with many stairs to prevent overexertion.
Historic center
You can also explore the historic center at your own pace, walk around Plaza Mayor of Cusco, nearby streets, and visit a shop, café, or artisan market. The idea is to take breaks, sit down if needed, and avoid long uphill walks.
Low-intensity activities
Choose relaxed experiences such as visiting small museums, enjoying a coffee, trying light local food, or simply relaxing at the hotel. Everything helps your body adapt without stress.
Avoid unnecessary effort
The first day is not the time for demanding tours such as mountain hikes, long treks, or high-altitude routes. If you push yourself too hard from the beginning, you may feel unwell and affect the rest of your itinerary. It is better to start slowly and increase the pace the following day.
Once you have adapted on your first day, it is the perfect time to experience the best of Cusco. Discover the magic of Machu Picchu and the unique colors of Montaña de Colores with our 5-Day Trip to Machu Picchu and the Mountain of Colors.
Is altitude sickness dangerous in Cusco?
In most cases, altitude sickness in Cusco is not dangerous if managed properly from the beginning. The most common symptoms are mild discomforts such as headaches or fatigue, which disappear within one or two days with rest, hydration, and a relaxed pace.
However, it can become a problem if you ignore your body’s signals or push yourself too hard from the start. If symptoms worsen (shortness of breath at rest, severe dizziness, or discomfort that does not improve), it is important to stop activities and seek assistance. It is not common, but it is better to prevent. With proper acclimatization and a well-organized itinerary, you will enjoy Cusco without major issues.
Acclimatization before going to Machu Picchu, Humantay, or Mountain of Colors
Before doing more demanding tours, make sure you are already acclimatized in Cusco. For destinations like Machu Picchu, one day of adaptation is usually enough, since it is at a lower altitude than Cusco. Even so, we recommend not going on the same day you arrive.
In the case of Humantay Lake and the Mountain of Colors, it is essential to have at least 1 or 2 days of prior acclimatization. These routes exceed 4,000 meters and require more physical effort, especially due to hiking at high altitude.
If you try to do these tours without proper acclimatization, it is very likely that you will feel unwell during the hike and not fully enjoy the experience. That is why you should always organize your itinerary from lower to higher intensity: start with a relaxed Cusco, then Valle Sagrado or light activities, and only afterward move on to these higher destinations. This way you make the most of each day and avoid unnecessary risks.
Frequently asked questions about acclimatization in Cusco
Does everyone experience soroche?
No. Some people do not feel anything, while others experience mild discomfort upon arriving in Cusco.
Do children adapt better?
Generally yes, but they should still rest, stay hydrated, and avoid effort on the first day.
Does coca tea work?
Yes, it helps relieve mild symptoms, but it does not replace rest and hydration.
When does the discomfort go away?
Usually within 24 to 48 hours.
Is it better to sleep in Valle Sagrado?
Yes. Valle Sagrado de los Incas is at a lower altitude and helps with acclimatization.
