At Ke'e Beach (hits a little close to home because I snorkeled there earlier this month). Cause of death not yet determined. He was supposed to fly the next flight home, which they had to cancel.

http://www.honoluluadvertiser.com/ap...0334/1004/NEWS

Seems like another one of the recent bizarre tourist deaths. It obviously depends on the ocean conditions, but snorkeling at Ke'e didn't strike me as particularly dangerous. And, according to the story, this guy was apparently an avid outdoorsman.