This is a 360° YouTube clip, which won't work properly in some browsers.
It apparently works in Chrome, Firefox, Opera, and in some IE variants -- I've only tried it in Chrome.
If you see the video playing in the letterbox view like in the thumbnail (currently how it works in Safari), it's not working properly, you should see a pan button in the top left, and the view can be rotated using the WASD keys
This clip is from Race 2, day 1 of the Alan Martin Series at RPNYC (1st for Blink in both races!)
We've left Wedgetail behind (visible through the stbd wheel) and running down the trimaran St Laurence, we gybe away to clear them near the end of the clip.