The High Altiplano Field Manual

🗓️ Best Time to Visit

The dry season runs May through October — clear skies, freezing nights, and reliable road conditions. The wet season (December through April) floods the Salar into its famous mirror but turns the Sud Lípez roads into a slurry of mud and standing water that defeats most 4x4s. May, June, and September are the sweet spot: stable weather, fewer tour groups than July-August, and the Cordillera Real glaciers still in climbing condition. Avoid January-February for off-road driving south of the Salar.

🚗 Getting Around

This is a high-clearance 4x4 route, full stop. The northern sections (Lake Titicaca to La Paz to Patacamaya) are paved and any vehicle can do them. South of Patacamaya you have intermittent dirt roads. South of the Salar — Sud Lípez — is rough off-road, sand, washboard, river crossings, and occasional rock-crawling. Vehicles that work well: Land Cruiser 70-series, Land Rover Defender, Hilux. Vehicles that struggle: anything low-clearance, any 2WD. Carry two spare tires, full fuel reserves (cap to cap is 400km between reliable gas stations in the south), and a satellite communicator. The Tiquina ferry only takes vehicles up to standard 4x4 width — overlanders with truck campers should measure twice.

🍽️ What to Eat & Drink

Charque-khan (shredded llama jerky with corn, egg, cheese, and potato) is the regional dish of the altiplano — try it in Patacamaya or any roadside hostal. In Sud Lípez your food is whatever you brought. Coca tea (mate de coca) is sold everywhere, drink it whenever offered — it genuinely helps with altitude. Stock up on dried fruit, nuts, chocolate, and tinned protein before leaving La Paz. Drinking water: never trust tap, never trust visible streams in the south (mineral content is extreme — flamingo lakes are literally toxic), filter or purify everything from glacial sources. Bring enough water for 5L per person per day in the dry south, more in heat.

🤫 Local Secrets

Sleep on the Salar at Isla Incahuasi instead of in Colchani's salt hotels — total silence, complete darkness, the Milky Way overhead, free. The northern pool at Termas de Polques (about 1km from the main complex) is usually empty even when the main pool is rammed with tour groups. Tunupa's lower viewpoint is free and reachable in any 4x4; the rim hike requires a paid local guide. The view from the road south of Patacamaya at sunset, with Sajama in the distance, is better than any official mirador. And one last thing — overlanders who help locals (rides, tools, food) almost always get invited to camp on someone's land. Cash isn't the universal currency in rural Bolivia. Skills and goodwill are.

🎒 Packing Essentials

Sleeping bag rated to -15°C minimum (you will use it). Down jacket plus hardshell. Buff and gloves at all times above 4,000m. Sunglasses with side shields (snow blindness on the Salar is a real risk). High-SPF sunscreen reapplied every 2 hours — the altiplano UV burns through cloud. Hiking boots stiff enough for crampons if doing any of the peaks. Headlamp with spare batteries. Toilet paper everywhere (you will not find it in rural bathrooms). Diamox / acetazolamide if you're prone to altitude sickness, started 24 hours before crossing 4,000m. Photocopies of every passport, license, and vehicle document; the originals stay in a hidden compartment. Cash in Bolivianos — there are no ATMs south of Uyuni town.

📅 Booking Ahead

Refugio Casa Blanca on Huayna Potosí — book 1-2 weeks ahead in peak season (June-August), or arrive early to claim a bunk. Climbing agencies in La Paz for Huayna Potosí — book 2-3 days ahead, look for guides certified by the Asociación de Guías de Montaña de Bolivia. Uturuncu guides — arrange through the village of Quetena Chico the day before, no advance booking system exists. The Tiquina ferry runs continuously, no booking needed. Bolivia entry visa (if your nationality requires it) — apply weeks ahead, this is not a same-day process. Carnet de Passages for the vehicle: not officially required for Bolivia but most overlanders entering from Peru get a Temporary Import Permit at the border that's good for 90 days.

💰 Money & Budget

Bolivian Boliviano (BOB), roughly 7 BOB to 1 USD. Cash is king: ATMs are reliable in La Paz, Oruro, and Uyuni town, useless almost everywhere else. Withdraw enough for the full Sud Lípez circuit (allow 1,500-2,000 BOB per person for fees + food + lodging if you're self-sufficient). Bolivia exit fee at Hito Cajón: 15 BOB per person. Eduardo Avaroa reserve: 150 BOB per person plus 25 BOB per vehicle. Isla Incahuasi: 30 BOB. Termas de Polques: 30 BOB. Foreign-plated vehicle fuel: officially you pay the international rate (about double local), some stations will only sell at international rate for tourist plates, others refuse outright — fill up at YPFB stations in La Paz where the rules are followed, and carry a 20L jerry can. Tipping isn't standard but climbing guides expect 10-15%.

🙏 Respect & Safety

Altitude is the main risk on this route, not crime. Acclimatize properly: minimum 2 days in La Paz / Copacabana before going higher than 4,500m, and consider Pico Austria as a test before Huayna Potosí. HACE and HAPE are killers above 5,000m — symptoms include severe headache, confusion, wet cough, blue lips. The only treatment is immediate descent. Don't push. The flamingos and vicuñas in Sud Lípez are legally protected; stay 50m back, don't fly drones near them, and don't drive off-track to chase a shot. The geothermal field at Sol de Mañana is genuinely dangerous — boiling water under thin crust has killed people, stick to marked paths absolutely. Police checkpoints on Bolivian highways are normal; have your passport and vehicle documents in hand, don't volunteer information not asked, and never offer money unless explicitly asked (it's illegal, but a 'collaboration' of 20 BOB for an invented infraction is sometimes the path of least resistance — your call). Coca leaves are legal in Bolivia, illegal in Chile and Peru — don't carry them across borders.