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The FlexiPass is valid for six months at any Los Glaciares portal — including Perito Moreno at the far southern end of the park. Three days on the trails plus a day at the glacier can all go on one FlexiPass.
El Chaltén's only ATM caps withdrawals at ARS 40,000 (≈ €22) and charges ARS 12,000 (≈ €7) each time. Pay by card, or bring pesos from El Calafate.
The northern park portals take cards only — online in advance or by QR code on the spot. Arriving with cash and no card means not getting in.
4G works in El Chaltén itself. Past the park boundary, it's gone. Download maps before you set off — and a small eSIM covers the town days, since no plan buys you a signal the park doesn't have.
Most mountain streams in the park are drinkable. A bottle with a small filter replaces carrying three litres — but skip the river near town.
→ Filter water bottle on Amazon: UK · ES · DE
The peak is cloud-free on only about one day in five. Two nights is a gamble; four or five gives you a real chance.
Guides for El Chaltén and Los Glaciares planning — real costs, route comparisons, and booking links.