El Dorado Nature Center is a hidden jewel in Long Beach. Looking at the photo, it might be hard to believe that this is in the middle of a large, urban city. (Being there in person, and hearing the noise of a not-so-distant freeway, makes it a little easier to believe.) On Saturday, I took my youngest son and a friend of his to hike the Center's "Two-Mile Trail." They didn't want to go at first. Once there, however, they didn't want to leave.