Can I drink the water from the streams?

In Patagonia, yes. The glacial water is pure, but check for livestock nearby if you are in lower-altitude farming areas.

Most trails in Torres del Paine are well-marked and do not require a guide, but a guide is strongly recommended for high-altitude volcano treks in the north.

Planning a Chile Trekking Expedition

To plan a successful hiking trip in Chile, prioritize Patagonia for multi-day treks or the Atacama for high-altitude day hikes. Book your national park permits and campsites at least 6 months in advance, as these sell out quickly.

Choose your region. Pick between the rugged peaks of Torres del Paine (south), the volcanic landscapes of the Lake District (central), or the high-altitude desert of San Pedro de Atacama (north). Do not try to combine these in one trip unless you have 3 weeks.
Secure your permits. If you are trekking the W or O circuits in Torres del Paine, you must book your campsites or refugios through CONAF, Vertice, and Las Torres websites before you finalize any flights. You cannot hike these without confirmed reservations.
Arrange regional transport. Fly from Santiago to Puerto Natales (for Patagonia) or Calama (for Atacama). Use local bus lines like Bus-Sur for connections between towns; they are reliable and offer assigned seating.
Acclimatize. If trekking in the north near the Andes, spend 2 full days in San Pedro de Atacama (2,400m) before attempting any hikes above 4,000m to avoid altitude sickness.

Can I drink the water from the streams?: In Patagonia, yes. The glacial water is pure, but check for livestock nearby if you are in lower-altitude farming areas.
Do I need a guide?: Most trails in Torres del Paine are well-marked and do not require a guide, but a guide is strongly recommended for high-altitude volcano treks in the north.