Night life? Secret parties/pop up bars open all night, comedy shows, music shows. I know where to go. Nature? Know all the good hikes and am an expert hiker and guide. Sightseeing? Know all the big things to hit plus all the great architecture, grafitti spots, and fun neighborhoods with unique things to do and see (Chinatown, Thai Town, Little Bavaria, Little Tokyo, etc.) Restaurants? Name a food and I'll take you to the place in L.A. where they make it best.