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- Finding waterFollow animals/insects (lead to water). Search valleys, hollows, near vegetation. Follow stream downstream.
- Collecting dewTie cloths around legs during morning walk. Wring out cloths. Up to 1 liter per hour possible.
- Collecting rainwaterStretch tarp, plastic sheet or large leaf to channel water to container. Rainwater is usually cleaner than water from ditches or rivers, but boil or filter it if it ran over a roof, gutter or dirty tarp.
- Boiling — best methodBoil at least 1 minute (above 2000m: 3 min). Kills bacteria, viruses and parasites.
- Making emergency filterPlastic bottle with layers: coarse sand, fine sand, charcoal, coarse gravel. Always boil after filtering.
- TipDo NOT drinkNo seawater, no urine, no alcohol, no muddy still water without purification.
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