How high is considered high altitude?

High altitude starts at 8,000 feet (2,400m). Very high altitude is 12,000+ feet. Most Andean cities like Cusco (11,200 feet) and La Paz (12,000 feet) are in the high altitude zone.

Can I buy gear in Andean cities?

Yes, but quality varies. Cusco, La Paz, and Quito have good outdoor shops. Rental gear is widely available and often better quality than what's for sale. Expect to pay $5-15 per day for jackets and boots.

Do I need special boots?

Waterproof hiking boots with ankle support minimum. For technical routes or glaciers, rent mountaineering boots with crampon compatibility. Regular sneakers won't cut it above treeline.

How much water should I carry?

3-4 liters minimum per day at altitude. Dehydration accelerates altitude sickness. Bring purification tablets or filter - mountain streams aren't always safe despite looking clean.

What to Pack for High Altitude Travel in the Andes

Pack layers for extreme temperature swings, altitude sickness medication, and sun protection stronger than you think you need. The Andes go from freezing nights to blazing midday sun at 12,000+ feet elevation.

Start with base layers. Pack merino wool or synthetic base layers. Cotton kills at altitude when wet. Bring 2-3 sets minimum for multi-day trips.
Add insulating layers. Down jacket rated for 20°F (-7°C) minimum. Fleece or wool mid-layer. Temperature drops 3.5°F per 1,000 feet of elevation gain.
Pack waterproof outer shell. Breathable rain jacket and pants. Weather changes fast in mountains. Even dry season sees afternoon storms above 10,000 feet.
Get altitude medication. Bring acetazolamide (Diamox) if prescribed by doctor. Ibuprofen for headaches. Altitude sickness hits 25% of people above 8,000 feet.
Add sun protection gear. SPF 50+ sunscreen, glacier glasses with UV400 protection, wide-brim hat. UV exposure increases 10-12% per 3,300 feet of elevation.
Pack breathing aids. Coca tea bags or coca leaves where legal. Helps with altitude adjustment. Throat lozenges for dry mountain air.

How high is considered high altitude?: High altitude starts at 8,000 feet (2,400m). Very high altitude is 12,000+ feet. Most Andean cities like Cusco (11,200 feet) and La Paz (12,000 feet) are in the high altitude zone.
Can I buy gear in Andean cities?: Yes, but quality varies. Cusco, La Paz, and Quito have good outdoor shops. Rental gear is widely available and often better quality than what's for sale. Expect to pay $5-15 per day for jackets and boots.
Do I need special boots?: Waterproof hiking boots with ankle support minimum. For technical routes or glaciers, rent mountaineering boots with crampon compatibility. Regular sneakers won't cut it above treeline.
How much water should I carry?: 3-4 liters minimum per day at altitude. Dehydration accelerates altitude sickness. Bring purification tablets or filter - mountain streams aren't always safe despite looking clean.