The Lost Coast Trail is not for the faint of heart. This 25 mile trail mostly follows the rugged California coastline four hours north of San Francisco, named for its inaccessibility and lack of roads, towns, or civilization. You spend most of your time hiking on wet sand or shifting pebbles, and have to time your hiking according to the tides in order to not get swept into the freezing Pacific. But the ruggedness is also the reward. Stunning coastline, black sand beaches, and wildlife barely accustomed to seeing humans makes you feel like you are truly passing through untamed and untouched territory.