One of the largest botanical gardens on the west coast, the Botanical Gardens cover 55 acres with thousands of varieties of plants from around the world and multiple specialized gardens and miles of trails (seriously, the place is huge). One of the most unique attractions is the Redwood Trail, which runs through a naturalistic redwood forest reminiscent of the ones north of San Francisco along the Californian coast. There is also a bookstore and library on the premises, near the main entrance. Free guided tours of the gardens depart from the bookstore daily at 1:30PM with an extra tour on the weekends at 10:30AM. On Wednesdays, Fridays and Sundays another free tour departs from the Friend Gate at 2PM. Free.