That is one amazing video! Thanks Cathryn. I didn't have time to read any background on it (nor time yet to respond to your posts below), but I have my doubts as to whether that was actually a tsunami. It was way too big to be a tidal wave, and tsunamis rarely have the concave form (the "tube") that you see in the video. And their occurrence in such great size and perfect form are way too unpredictable to have both a jet-ski tow and a helicopter ready and waiting.

But, again, thanks for sending the link.

Mike Williams