Question: which national parks are best to visit in april?
Answer: Shenandoah National Park. Virginia. ... , Arches National Park. Utah. ... , Redwood National Park. California. ... , Grand Canyon National Park. Arizona. ... , Joshua Tree National Park. California. ... , Great Smoky Mountains National Park. Tennessee and Virginia. ... , Yellowstone National Park. Wyoming, Idaho, Montana. ... , Rocky Mountain National Park. Colorado.