Create your custom-made trip to the United States

When should you go?
The US experiences all four Northern Hemisphere seasons, but the country's geographical range means you can find sunshine at any time of year. In the dead of winter, you can find beachgoers sunning themselves in San Diego, snowboarders zig-zagging down the slopes of world-class resorts, and hikers enjoying local trails all the way down to the Mexican border. 

Summer months (June-August) are ideal in nearly every corner of the country, especially in areas where snow tends to last well into spring, like the Rocky Mountains, the Northeast, and states along the Canadian border. An exception can be made for the low-lying deserts of the West and Southwest—areas like California's Death Valley and Joshua Tree are brutally hot outside of winter and spring. Spring and fall can be stunningly beautiful in mountain regions throughout the country, with wildflowers and fall foliage in abundance, though weather can be less predictable and regionally specific. 

Where should you go?
It's said that the US national parks system is "America's best idea," and you wouldn't be wrong to base your itinerary on that assumption. Yellowstone National Park is globally known for its natural wonders: waterfalls, geysers, and hot springs abound, and wildlife like bison, grizzly bears, and elk roam throughout. See the otherworldly rock formations of Arches National Park in Utah, visit the world's tallest trees in Redwoods National Park in California—the list goes on and on. 

How many days do you need?
You'll want to spend at least a week in the US to do it justice—and with 7 days, you'll still want to focus on one region.  Stick to California, for instance, and take a coastal drive up world-famous Highway 1 from Los Angeles to San Francisco, with stops in charming Santa Barbara and dramatic Big Sur. Or, spend your whole week exploring Yosemite's trails, waterfalls, and vistas. Add another week and combine two regions: add a train trip through Colorado to a Yellowstone excursion, or cycle through Utah before making stops in Las Vegas and the Grand Canyon.