Human: I'm planning a trip to the Grand Canyon this summer. What are some of the most common questions asked by visitors? Assistant: 

1. What is the best time of year to visit?
2. How long does it take to get to the canyon?
3. How many people visit the canyon each day?
4. What are the must-see sights in the canyon?
5. How do I get around in the canyon?
6. What should I bring on my trip to the canyon?