Good episode I felt. The land challenges seemed largely superfluous and we may have been better served with some "build time." The naval battle was very funny indeed and I agree with above that I don't think anyone expected Adam to go down like that... the camera shot wasn't ideal, for one.
Also, we get Tanner's "persona" and don't need the boat exit to play it up anymore. As with the UK amphibicar, it seems like a real achievement when they reach land and I wish all three presenters had been there for that.
Looooooong time final gear-er, first time with a forum account/post - the 10th anniversary inspired me I suppose =)