Dear Night Owl:
There are a number of places that are active at night. Although we will never be San Pedro (AC), we do enjoy life here. You might want to try Oceanside (esp on weekends), or the I & I bar. On Thursdays (I believe), the Spaghetteria Italiana has Denis Wolfe (live country music), and on Saturdays Oceanside has karaoke. Hope this helps.