The nine national parks, in no particular order, are Redwood, Yosemite, Sequoia and Kings Canyon, Death Valley, Joshua Tree, Channel Islands, Lassen Volcano, and Pinnacles.
California is home to more national parks than any other state.  The nine national parks, in no particular order, are Redwood, Yosemite, Sequoia and Kings Canyon, Death Valley, Joshua Tree, Channel Islands, Lassen Volcano, and Pinnacles.