California offers wide variety of natural wonders, from coast to mountains, desert, lakes, ancient woods, and more. The National Park Service maintains a total of 23 different units in California including 9 National Parks. California State Park system administers 278 parks and 1.4 million acres, with over 280 miles of coastline; 625 miles of lake and river frontage; nearly 15,000 campsites; and 3,000 miles of hiking, biking, and equestrian trails.