Dreaming about visiting Yellowstone, Yosemite, the Grand Canyon, or another U.S. national park? A little planning can prevent some big surprises! In this episode, I explain what international visitors should know about park passes, campsite reservations, busy seasons, crowds, and changing weather. You'll also learn useful English for planning an outdoor adventure. From mountains and forests to deserts and volcanoes, discover the incredible variety of America's national parks — and learn how to prepare before you go.