Let’s be real—high-altitude treks like the Ausangate Trek 4 Days aren’t your average Sunday stroll. We’re talking glacier-fed lakes, jagged peaks, and dizzying elevation gains that can push even seasoned hikers out of their comfort zone. But that’s what makes it thrilling, right? Still, excitement doesn’t replace preparation. Altitude is beautiful, but also brutal if you’re not ready for it. In this guide, we’re breaking down exactly how to keep yourself safe while experiencing one of the most jaw-dropping landscapes in the Andes.
And yes, some folks think they can “tough it out,” but even the boldest adventurers end up humbled when the air gets thin. According to Forbes, even fit hikers aren’t immune to altitude sickness without the right planning. So here’s what actually matters.
Hydration Is Everything at Altitude
Forget your usual 2-liter routine. At high elevations like Ausangate’s 4,000–5,000 meters above sea level, your body loses water faster due to increased respiration and dry air. Dehydration is one of the main triggers for altitude sickness, and you won’t even realize you’re getting dry until it hits you hard.
On our treks, we always make sure you’ve got access to clean, purified water—and we encourage sipping frequently rather than chugging. Bring your own reusable bottle and hydration salts. And no, coca tea isn’t just a gimmick. It’s been used for centuries in Peru to ease altitude-related discomfort.
Food: Eat Smart, Stay Strong
At altitude, your body needs fuel—but not just any fuel. Rich, heavy meals can actually make you feel more nauseous. That’s why we carefully plan our meals to be high in carbs and easy on the digestive system. Think warm quinoa soups, lean proteins, fresh vegetables, and plenty of herbal teas.
We also understand that appetite can dip at altitude. Our guides gently encourage you to eat small portions throughout the day—even when you don’t feel hungry—because trust us, your energy reserves are burning fast up there.
Respect the Sun Like Never Before
One thing that catches a lot of people off guard on the Ausangate Trek is the sun. It’s not always hot, but it’s extremely intense at high altitudes where the UV radiation is much stronger. Just because you’re bundled up doesn’t mean your skin is safe.
We recommend wearing long sleeves, UV-blocking sunglasses, and applying broad-spectrum sunscreen with at least SPF 50 every two hours. Bonus tip: Bring a buff or neck gaiter—it doubles as sun protection and warmth when the winds pick up.

Oxygen Support: Not Just for the Weak
Here’s a secret—oxygen isn’t a crutch, it’s a smart backup. We always carry oxygen tanks and pulse oximeters on our high-altitude treks. Our guides are trained to identify early signs of Acute Mountain Sickness (AMS) and provide immediate support if needed. Don’t wait until you’re gasping to say something—our priority is your safety, not pushing limits.
And if you’re especially concerned about acclimatization, consider spending a couple of days in Cusco or adding a Humantay Lake tour or Sacred Valley tour from Cusco to your itinerary beforehand. It gives your body the chance to adjust gradually.
Acclimatization: Start Before You Step
Want to give yourself a head start? Book your trip to Machu Picchu or Rainbow Mountain from Cusco, Peru, tour for the days before Ausangate. Spending time at a slightly lower altitude helps your body slowly adjust to thinner air before tackling the big stuff.
At Rainbow Mountain Expeditions, we often suggest doing a Rainbow Mountain day trip Peru style or the Rainbow Mountain ATV tour ahead of Ausangate—it’s a great way to test your body’s response in a lower-pressure environment (literally).
Don’t Ignore Your Body
Last but definitely not least—listen to your body. Fatigue, dizziness, headache, or loss of appetite? Tell your guide immediately. Pushing through symptoms is not brave, it’s risky. We always keep a close eye on all trekkers, but your own honesty and awareness go a long way.
Rest when you need to. Breathe deeply. Take in the views. And remember—it’s not about how fast you go, it’s about how well you experience it.
Final Thoughts
The Ausangate Trek 4 Days is one of the most extraordinary journeys in the Andes, but it demands respect. By staying hydrated, eating right, protecting your skin, and listening to your body, you’ll be far better equipped to soak in every glacier, lagoon, and rainbow-hued vista without unnecessary risk.
We’ve led countless trekkers through these high-altitude paths—and with the right preparation, you can conquer them too.
Your Adventure, Elevated
Ready to take on the Rainbow Mountain day tour or build your own trip to Machu Picchu? At Rainbow Mountain tours, we offer more than just hikes—we offer fully immersive experiences through Cusco Peru day trips, Sacred Valley day trips from Cusco, and customized routes to suit every level. Whether you’re eyeing the Rainbow Mountain private tour, a scenic Seven Lakes tour, or even a Machu Picchu tour by train, we’ve got your back with the region’s most experienced guides. Book your journey now through our main site, explore our latest treks, check out our Machu Picchu packages, or simply call now to start crafting your high-altitude escape.