The City of Ventura's Seaside Wilderness Park is located across the Ventura River Main Street Bridge, adjacent to Emma Wood State Beach Park. One fun way to access it is by taking the Omer Rains Trail (bike path) to it from the Ventura Promenade area. But get off your bike when you reach your destination as this is a pedestrians-only park that contains the Ventura River mouth, the former "Hobo Jungle," the 1.3 mile Ocean's Edge Trail (tide pools) and .7 mile River's Edge Trail for birdwatching. Last time we were there we enjoyed some geocaching.