With the second richest biodiversity of any county in the continental United States, San Diego County offers a huge variety of hiking experiences. The 4,525 square mile county encompasses ocean bluffs covered with rare Torrey pines, rugged inland peaks studded with granite boulders, gently rolling mountain ranges blanketed in pine and oak forests, and the scorched badlands of Anza-Borrego desert. A vast treasure trove of natural marvels awaits the adventurous hiker.
