Peru spans coastal regions, highlands, and rainforests, often requiring travelers to adjust to varying altitudes and climates. The following 10 tips cover altitude acclimatization, ticket reservations, cash, and safety. Reviewing them before your trip can save you a lot of trouble. Always plan your itinerary based on your physical condition and don’t push yourself too hard. If you feel unwell at high altitudes, don’t tough it out—consult your guide or seek medical attention nearby.

1. Acclimatize to the Altitude: Cusco is around 3,400 meters above sea level. On your first day, rest a lot, drink plenty of water, avoid strenuous exercise and alcohol, and give your body one to two days to adjust.
2. Book Tickets in Advance: Machu Picchu and the Inca Trail have limited entry, so be sure to reserve your tickets through official channels in advance and double-check your visiting times—popular slots often sell out during peak season.
3. : The sightseeing trains have restrictions on luggage size and weight. If you’re staying overnight in Aguas Calientes, only bring carry-on luggage and store the rest in Cusco.
4. Sun Protection and Warm Clothing: The highlands have strong UV rays and significant temperature differences between day and night. Don’t forget sunscreen, sunglasses, and a warm jacket.
5. Cash Preparation: Markets, taxis, and rural areas often require cash. Carry small bills such as 10 and 20 sol notes to avoid issues with getting change for larger denominations.
6. Drinking Water Safety: Drink bottled water. Be cautious with raw street food, and go easy on Peruvian cuisine’s acidic and spicy flavors if you have a sensitive stomach.
7. Best Time to Visit: May to October (dry season) is ideal for traveling in the Andes. January to March sees more rain in the mountains and rainforest, and the Inca Trail is usually closed in February.
8. Language: English is usable in tourist areas, but learning a few basic Spanish greetings and dining phrases will make you more welcome.
9. Shopping: Alpaca wool products and silver jewelry are popular souvenirs. Look for quality labels and bargain moderately.
10. Emergency Numbers: Police: 105, Ambulance: 106, Tourist Police: 0800-22221.