That vid is taken from Endless Summer 2. Still never been able to work out whether that was a jenuine crash or if it was planned. The people standing fairly close on the bank makes me think it wasn't supposed to go that way.
Those pearl mallards are some very tidy machines. Up close they looked immaculate. Used to see them a fair bit docked off the Kimberley coast but never managed to see one taking off or landing on the water...