This is a wetland reserve located near Long Beach with plenty of bird sightings. Its more of a walk on a dirt road near the beach than a hike in the mountains. It’s not that beautiful and there is the noisy traffic from PCH. That said, this reserve hosts varieties of birds playing, chirping, diving, hunting; which made this hike very different from the usual fare.
It’s a popular spot for photographers shooting wild-life. My 50mm lens did not prove enough, but there are some amazing shots posted by other photographers here: http://500px.com/search?q=bolsa+chica.
I bet this place would be amazing during sunset.