The ideal length of your visit to Wrangell-St. Elias National Park depends on your interests and the activities you plan to do. For a brief visit to experience the park's highlights, 2-3 days may be sufficient. However, if you want to explore the park more extensively, including backcountry hiking, glacier trekking, and flightseeing, you may want to spend 5-7 days or even longer. Keep in mind that the park is vast, and travel times between destinations can be significant.