1. Los Cardones National Park is located in the Salta province of Argentina. It is named after the iconic cacti species, the \"cardones,\" which can be found throughout the park. The park covers an area of 650 square kilometers and is known for its stunning landscapes, including vast desert plains, colorful rock formations, and impressive mountain ranges. It is a popular destination for hikers, nature lovers, and photographers.

2. The park is open to visitors every day from 8:00 AM to 6:00 PM. For more information, you can contact the park administration at +54 387 4907000.

3. The entrance fee to Los Cardones National Park varies depending on your nationality. Argentine citizens typically pay a lower fee than foreign visitors. You can reach the park by car from the city of Salta, which is approximately a 3-hour drive away. It is recommended to have a high-clearance vehicle due to the unpaved roads in the park. Additionally, there are guided tours available that depart from Salta and include transportation to and from the park.