Lonely Planet Lonely Planet California is your passport to all the most relevant and up-to-date advice on what to see, what to skip, and what hidden discoveries await you. Watch sunsets and surfers along the Pacific Coast Highway, hike through wildflower-strewn meadows in Yosemite, or dine on organic California cuisine while overlooking Napa Valley vineyards; all with your trusted travel companion. Get to the heart of California and begin your journey now!