If you’re planning to do the Salkantay Trek, one of the most famous hikes in Peru, you’re probably wondering how many days you should stay in Cusco before starting. This is an important question because Cusco sits at an altitude of 3,400 meters (11,152 feet) above sea level, and hiking at high altitudes can be challenging for your body if you’re not properly acclimated.

Acclimatizing means that your body needs time to get used to the thinner air in the mountains. Cusco is at a high altitude, which means there is less oxygen in the air compared to lower places. If you don’t acclimatize well, you might feel symptoms of altitude sickness, like headaches, dizziness, or shortness of breath.
The good news is that you can help your body acclimatize by taking things slowly during your first few days. Here are some tips to acclimatize better:
Most people recommend staying in Cusco for two to three days before starting the Salkantay Trek. These extra days will give you time to acclimatize properly and enjoy everything Cusco has to offer before you begin your mountain adventure.
If you’ve never been at high altitude before or are more sensitive to altitude sickness, it’s better to plan for at least three days. During this time, you’ll feel more adjusted and prepared for the physical challenge of the hike. Plus, being properly acclimatized will allow you to enjoy the trek more, without worrying too much about altitude sickness symptoms.

While you’re acclimatizing, you can also take the opportunity to explore Cusco, a city full of history, culture, and fun activities. Here are some ideas of what you can do:



The Salkantay Trek is a challenging hike, so it’s important to be prepared both physically and mentally before you start. Besides acclimatizing in Cusco, make sure to follow these tips:
To ensure your experience is comfortable and safe, it’s essential to have the right gear. Here are some must-have items:

Spending at least two to three days in Cusco before starting the Salkantay Trek is a great idea to acclimatize to the altitude, enjoy the city, and prepare yourself physically and mentally for the adventure. With the right gear, the right mindset, and giving your body the necessary time to adjust, you’ll be ready to fully enjoy this incredible hike.
How many days should I spend in Cusco before starting the Salkantay Trek?
It is recommended to spend at least two or three days in Cusco before starting the Salkantay Trek. This gives your body time to acclimate to the altitude, reducing the risk of altitude sickness and helping you be in better shape to enjoy the trek.
What is altitude sickness and how can I prevent it in Cusco?
Altitude sickness occurs when your body doesn’t adapt well to the lack of oxygen at high altitudes. It can cause symptoms like headaches, dizziness, and difficulty breathing. To prevent it:
Can I do tourist activities in Cusco while I acclimate?
Yes, you can engage in light activities like walking around the historic center, visiting San Pedro Market, or exploring nearby sites like Sacsayhuamán, while taking it easy to avoid overexerting your body as it adjusts to the altitude.
What should I bring for the Salkantay Trek?
Some essential items include:
What happens if I don’t acclimate well in Cusco?
If you don’t acclimate well, you might suffer from altitude sickness during the trek, making the hike very difficult or even dangerous. In that case, it’s important to stop, rest, and in severe cases, seek medical advice or descend to a lower altitude.

