Due to the marked thermal fluctuation, it is necessary to bring summer clothing to wear during the day (cotton sports shirts or T-Shirts, bathing suit, shorts and thin fabric pants), as well as winter clothing to wear at night (polar, pants, feather parka or coat, and hat). Also bring boots and walking shoes.

During spring and summer you can expect temparatuest over 30° celsius during the tday and 5° celsius by night. Also during summer the altiplanic winter arrives with some rains coming from the tropical jungle. On winter is freezing at night and you'll experience temperatures bellow zero.

San Pedro is at an altitude of 2,450 mts (8,000 feet) , most of the tours are over 4,000 mts. This can cause altitude sickness also knwn as "mal de puna" or "Sorojchi" (Soroche).

Headaches are the primary symptom used to diagnose altitude sickness, although a headache is also a symptom of dehydration. A headache occurring at an altitude above 2,400 metres (8000 feet ), combined with any one or more of the following symptoms, may indicate altitude sickness:

• Lack of appetite, nausea, or vomiting
• Fatigue or weakness
• Dizziness or light-headedness
• Insomnia
• Pins and needles
• Shortness of breath upon exertion
• Nosebleed
• Persistent rapid pulse
• Drowsiness
• General malaise
• Peripheral edema (swelling of hands, feet, and face)

To prevent altitude sickness keep in mind this recommendations:

• Do not exercise until the body has adapted (at least 24 hours).
• If you suffer from hypertension you must not climb higher than 4,000 meters above sea level.
• If you suffer of weak heart, high pressure or obesity, ask your doctor first.
• Drink a lot of water
• Don't eat meat and avoid soft drinks with sugar
• Don't drink alcohol, as alcohol tends to cause dehydration, which exacerbates altitude sickness
• We recommend you take use aspirin for prevention. Also there's a
• For centuries, indigenous peoples of the Americas such as the Aymaras of the Altiplano, have chewed coca leaves to try to alleviate the symptoms of mild altitude sickness.

It is advisable to maintain your body hydrated due to the dryness in the air. We recommend that you only drink bottled water that can be purchased in the local stores. Although Water POTABLE, is completely safety to drink, but it have a high concentration of minerals content.

When you go on a tour, be sure to take some bottled water with you.

Business hours for minimarket, shops and council office is between 9:00 a 14:00 hours. and from 17:00 a 22:00 hours. business hours for restaurant and travel agencies is from 8:00 a 24:00 hours.

Local currency in Chile is "Pesos Chilenos". There's coins of $1, $5, $10, $50, $100 and $500 pesos, and xxx of $1.000, $2.000, $5.000, $10.000 and $20.000.

There are four ATMs, one bank, and many exchange houses, but the change is not the best you can get. Dollars, Euros and credit cards are accept in almost all shops.

In cafes, restaurants and bars, you should leave a tip of 10% of the total value of your bill. Luggage carriers, tourist guides and servicemen also expect a tip.

If you are crossing to Argentina by car don't forget to get an insurance, because without it you cannot enter the country.