There's crazy footage online of a huge chunk of ice that broke off a glacier and created a huge tsunami near Greenland.  Some guy got it on camera while the boat he was on was trying to outrun it.

The wave DID hit them, but somehow the boat didn't flip.

It happens at :50 and hits them at 1:11.

I would have had wet pants after that experience...and it's wouldn't have been from the tsunami.