Grab your sunscreen, insect repellent, and hiking shoes—we’re ready to hit the trails! If you don’t have a U.S. National Forest in your backyard and can’t soak in the dappled light on the forest floor in a moment’s notice, reach for your essential oils. With the right combinations, your diffuser will boast smells of spindly trees, crystal-clear lakes, and sky-scraping mountains. Below are 10 essential oil diffuser blends inspired by U.S. National Forests. Enjoy the instant woodland whimsy!