One of the best things about staying in Boise is how quickly you can reach some of the most extraordinary landscapes in the American West. Within an hour or two, you'll find yourself standing at the base of North America's tallest freestanding sand dune, gazing at a waterfall taller than Niagara, soaking in natural hot springs tucked alongside mountain rivers, or sipping award-winning wines in the Snake River Valley. These are the day trips that turn a great vacation into an unforgettable one.