Altitude Sickness on the Salkantay Trek: What You Need to Know
If you’re planning to hike the famous Salkantay Trek to Machu Picchu, you’ve probably heard about the risks of altitude sickness. Don’t worry — with the right preparation, you can minimize the risk and enjoy your adventure safely. Here’s everything you need to know about altitude sickness on the Salkantay Trek.
What Is Altitude Sickness?
Altitude sickness, also called acute mountain sickness (AMS), happens when you ascend to high elevations too quickly and your body struggles to adjust to the lower oxygen levels.
Common symptoms include:
- Headache
- Nausea or vomiting
- Dizziness
- Shortness of breath
- Loss of appetite
- Trouble sleeping
In most cases, symptoms are mild and go away as your body acclimates. But in rare cases, it can become serious if ignored.
Why Altitude Sickness Is a Concern on the Salkantay Trek
The Salkantay Trek reaches some serious heights:
- Cusco: 3,400 meters (11,155 feet)
- Salkantay Pass: 4,650 meters (15,256 feet) — the highest point of the trek!
This is higher than Machu Picchu itself, which sits at just 2,430 meters (7,972 feet). The big jump in altitude, especially on Day 2 of the trek, is what makes preparation essential.
Who Can Get Altitude Sickness?
Anyone — no matter your age, fitness level, or experience. Even seasoned hikers can feel the effects. It’s not about physical strength; it’s about how your body adapts to altitude.
How to Prevent Altitude Sickness on the Salkantay Trek
- Acclimatize in Cusco
Spend at least 2 to 3 days in Cusco or the Sacred Valley before your trek. This helps your body adjust gradually.
- Stay Hydrated
Drink plenty of water before and during the trek. Avoid alcohol and excessive caffeine, which can dehydrate you.
- Take It Slow
Walk at a steady pace, especially on ascent days like the climb to Salkantay Pass. Don’t rush.
- Eat Light but Often
Frequent small meals with carbs help maintain your energy without overloading your stomach.
- Try Coca Tea or Leaves
Locals swear by coca tea (mate de coca) to ease altitude symptoms. It’s a traditional remedy and widely available in Cusco.
- Consider Medication
Talk to your doctor about acetazolamide (Diamox), which can help prevent and reduce symptoms.
What to Do If You Get Sick on the Trek
- Tell your guide immediately — they are trained to recognize and manage altitude sickness.
- Rest, hydrate, and descend if necessary.
- Mild symptoms are common and usually pass, but severe symptoms require immediate action, which might mean descending to a lower altitude or even evacuating.
Pro Tip: Choose a Reputable Tour Company
Going with an experienced company means having guides who monitor your health, carry oxygen, and are prepared to handle emergencies. Peace of mind on the trail is priceless!
Final Thoughts: Don’t Let Altitude Stop Your Adventure
Yes, altitude sickness is a real concern on the Salkantay Trek, but with smart preparation, thousands of travelers safely complete this epic journey every year. Respect the mountain, listen to your body, and you’ll be rewarded with the adventure of a lifetime — standing at Machu Picchu after conquering Salkantay.