Do I really need a heavy down jacket?

Yes. Even if you visit during the day, the temperature in places like Uyuni can drop to -10°C or lower at night. A packable down jacket is non-negotiable.

Will my electronics survive the altitude?

Cameras are fine, but batteries drain incredibly fast in the cold. Keep your batteries inside your jacket close to your body heat when not in use.

Should I bring altitude medication?

Speak to your doctor about Acetazolamide (Diamox). Most locals swear by 'mate de coca' (coca leaf tea), but having professional-grade medication as a backup is standard practice for travelers going above 3,500 meters.

Packing for High-Altitude Bolivia

To survive Bolivia’s high altitude, which often exceeds 3,600 meters, you must prioritize a strict layering system and sun protection. Pack high-SPF sunscreen, polarized sunglasses, and a heavy-duty thermal base layer to handle temperature swings that can drop 20 degrees Celsius between day and night.

Master the layering system. Bring a moisture-wicking synthetic or merino wool base layer, a fleece mid-layer for insulation, and a windproof/waterproof outer shell. You will be stripping and adding layers constantly as the sun hits or clouds move in.
Prepare for extreme UV. The thin atmosphere at high altitude means UV rays are significantly more intense. Bring a wide-brimmed hat, SPF 50 sunscreen (and reapply every 2 hours), and high-quality polarized sunglasses to prevent snow blindness, even if there isn't snow.
Pack for hydration and respiration. Bring a reusable 2-liter water bladder or bottle with a filter, as local tap water is not potable. Carry a small container of Vicks VapoRub or a saline nasal spray; the arid air will cause your nasal passages to crack and bleed within 24 hours.
Manage your feet. Bring broken-in, waterproof hiking boots with excellent ankle support. The terrain in places like the Salar de Uyuni or mountain passes is uneven and volcanic, which shreds thin sneakers.

Do I really need a heavy down jacket?: Yes. Even if you visit during the day, the temperature in places like Uyuni can drop to -10°C or lower at night. A packable down jacket is non-negotiable.
Will my electronics survive the altitude?: Cameras are fine, but batteries drain incredibly fast in the cold. Keep your batteries inside your jacket close to your body heat when not in use.
Should I bring altitude medication?: Speak to your doctor about Acetazolamide (Diamox). Most locals swear by 'mate de coca' (coca leaf tea), but having professional-grade medication as a backup is standard practice for travelers going above 3,500 meters.