Hello! It sounds like you're going to have an exciting trip to Argentina, visiting Buenos Aires, Córdoba, and Salta. Here are some practical tips for your journey.

Best Time to Visit:
The best time to visit Argentina is in the season of Spring (September to November) or Autumn (March to May). The weather is generally mild during these months, making it an ideal time to explore all three cities.

Route and Accessibility:
All these cities are well accessible by flights. Direct international flights primarily land in Buenos Aires, from where you can take domestic flights to Córdoba and Salta. Alternatively, you can also take comfortable long-distance bus services, which run between the cities.

Accommodation and Booking:
All three cities offer a wide range of accommodation options to suit every budget. Buenos Aires and Córdoba have many luxury hotels, while Salta offers more budget-friendly options. It's recommended to book your accommodation in advance, especially during peak travel seasons.

Clothing and Essentials:
Pack layers as temperatures can vary. A raincoat and sturdy walking shoes are a must, as you'll be doing quite a bit of outdoor exploration. Also consider packing sun block, hats, and sunglasses for protection against the sun.

Health and Safety:
No specific vaccinations are required for Argentina, but it's always a good idea to be up-to-date on routine vaccines. Tap water is generally safe to drink, but bottled water is recommended for those with sensitive stomachs. Safety levels in these cities are generally good, but be aware of your surroundings and keep an eye on your belongings, especially in busy areas.

Local Etiquette and Respect:
Argentinians are warm and friendly. When greeting, a kiss on one cheek is common, even between men. Respect for local culture and traditions is expected - try to say a few words in Spanish, it's always appreciated. Tipping is customary in restaurants and for services.