What is the best time to visit Grand Canyon National Park in Arizona, taking into consideration factors such as weather, crowd levels, seasonal events, and overall experience? Could you provide insights into the ideal months, days of the week, and times of day to visit the park for different types of travelers, including those interested in hiking, photography, stargazing, or simply enjoying the canyon’s natural beauty? Additionally, what are the advantages and challenges of visiting during the peak season versus the off-season, and how do the different rims (South Rim, North Rim) impact the best time to visit?