(Be sure to watch HD fullscreen) As part of World Environment Day, Pittsburgh breaks the world record for Largest Raft of Canoes/Kayaks. The official count not yet released - but an estimated 1,800 took part in the event. Kayakers launched their boats from downtown and formed a raft near Point State Park. Once arranged, each pulled up his or her paddle and held onto an adjacent boat for 30 seconds—long enough to satisfy the record's time requirement. See everyone get completely drenched at 0:36. Video by Randy Sargent and Paul Heckbert of GigaPan and Carnegie Mellon University CREATE lab. Thanks especially to Mark Susany and Heinz Field for letting us shoot from atop the scoreboard at Heinz Field. For higher quality, download the full 1080P video from http://www.cs.cmu.edu/~gigapan/timelapse/flotilla-timelapse-1080p.mp4