It was a late night for "LOST" at Sacred Heart Academy in Kaimuki. "LOST" spotter Joel posted a couple of photos and sent Hawaii Blog this report from the scene:

"They had a massive set of lights set up and Ben, Desmond and a woman were in the scene (I think it may have been Sun as she had long, straight, dark hair). I did get a chance to stand around and watch them film the scene. The woman and Ben were talking when Desmond came from the right of the scene. In a loud voice, he said, 'What are you doing here?!'"

The woman does indeed look like Sun, and the scene does seem to fit in with the overall "rounding up the Oceanic 6" theme of the past several location shoots. But it's interesting that they're connecting with Desmond, who we last saw (filming wise) in the Philippines.

Sacred Hearts and its Romanesque architecture could be standing in for any number of far-flung locations, but I'd guess not Southeast Asia.