Like the rest of Los Angeles, much of Echo Park is slowly disappearing behind hedges and high walls, which makes the open doors of the Echo Park home tour all the more inviting. This Sunday, the Echo Park Historical Society is holding its fourth-annual home tour, from 11 to 4. Yes, that’s eleven a.m., though you could get a pretty good Echo Park tour on the sun-down side of the clock, too. The focus this year is the “Bohemian Havens of Elysian Heights.” (Disclaimer: I am a board member of the Echo Park Historical Society, and as a docent I may be the person telling you to get your paws off the pottery and please enjoy the lovely cantilevered ceiling.) It’s a self-guided tour, and for myself it’s a pleasure to see hundreds of people walking the sidewalks of the steep hills, maps in hand. It breaks the stillness of the “secluded canyons” featured on the tour, it makes them festive.