Yellowstone National Park, Wyoming, Montana, and Idaho
Old Faithful erupting, the swirling volcanic colors of Grand Prismatic Spring, and the Grand Canyon of the Yellowstone are all amazing sights on the beaten path of America's first national park, but where Yellowstone really shines is in its opportunities for wildlife viewing. "If you are willing to get up extra early — 4 a.m. — and travel to Hayden Valley, you may have a chance of seeing some really cool animals," says Frank and Gráinne Foley of the RV lifestyle blog The Roving Foleys, citing bison, grizzly bears, wolf packs, and elk herds ‘‘all from one morning." Conversely, family travel blogger Amy Martin of Two Little Pandas, prefers going at sunset. "I love setting up a camp chair with a blanket and a warm drink anywhere in the Lamar Valley where you have a bit of a view," she says. "Be sure to be ready about half an hour before sunset so you don't miss anything, and bring a decent pair of binoculars and a camera with a zoom lens, if you are a photographer." The best visiting times to avoid the crowds but catch the animals are late spring and early fall.
Related: 21 Places to Safely See Wild Animals Up Close