Is it possible to get up on a Saturday morning and say, “Let’s spend the night in Yosemite”? It is now. The Housekeeping Camp in Yosemite Valley is an easy reservation this time of year. Your three-walled “cabin”—a curtain forms the fourth wall—puts you in the heart of the park’s autumn wonders: tranquil meandering trails in the crisp leaf-scented air, unpopulated sandy beaches along the Merced River, transporting views of Yosemite Falls and Half Dome. Best of all: Hikes like the Mist Trail start on the valley floor just outside your door.