San Diego's hottest new luxury hotel, Sé, has just bumped it up a notch and opened its rooftop bar/lounge, Sìrén. The 7,000 square-foot hot spot features an infinity edge pool with underwater surround sound, a large central teak bar, eight private cabanas with bottle service and oversized beds. Sounds a lot like the Ivy rooftop bar. We'll see who really comes out on top. Sé is located at 1047 Fifth avenue, between Broadway and C.