Redwood National Park

Brian van der Brug/ Los Angeles Times /

Redwood is one of America's least-visited national parks but not for its lack of beauty; it has that hands down, what with 2,000-year-old redwoods, 40% of California's seabirds, an overlook where the wild Klamath River merges with the vast Pacific and all the other glory that an old-growth forest has to offer.