Shaggysheepdriver, the rumour doing the rounds was that he was trying to copy the T6 Harvard display team in South Africa, who skim the surface of a lake in formation.
Matey had a chum standing by the riverbank to video his amazing feat of daring-do but, when the accident happened, wisely decided to 'accidentally' wipe the footage. Matey then came up with the landing story.
Allegedly.