I don't know if it's that exact shot, but there's a sequence where she's whirling swords (for practice) beside a beach in 'Miss Amphipolis'. Which has a few dorky moments - as does any of the episodes with Meg - Warrior, Princess, Tramp, springs to mind. Loads of others too - but as I don't have anything I can use to rip from my DVDs I can't supply you with clips. :-(

You can find most of the Xena bloopers on Youtube, so that's a possible source of inspiration ...