'Duck Dynasty' Season Finale Sneak Peek: Willie and Uncle Si Go Surfing [Video]

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The men of "Duck Dynasty" don't take to the water like ducks!

On Wednesday night's season finale, the entire Robertson clan goes to Hawaii for a little R&R. While there, Duck Commander CEO Willie decides to learn how to surf -- with predictably hilarious results.

"My rule of thumb is, I'll only allow myself to fall four times while doing anything. Anything more than that and you're just being an idiot," he says in this preview clip. Then, of course, Willie wipes out numerous times.

"OK, six. Six times. That's it," he adds.

[Related: How Did the 'Duck Dynasty' Couples Meet?]

Best of all, Willie's wobbly attempts inspire Uncle Si to jump in the water! Naturally, Si boasts that he's a wave master.

"Back in 'Nam I was a surfing king," Si proclaims. "I could hang 10, hang loose, shred a wave, walk the plank, high-five. ... It was totally gnarly."

Sure it was, Si, sure it was.

Check out the finale on Wednesday at 10 PM on A&E.