Kate Middleton Stuns in Chic Nautical Ensemble for the Third Time -- See the Pics!

Third time's a charm for Kate Middleton!

The Duchess of Cambridge visited Sir Ben Ainslie's Land Rover BAR team to help open the 1851 Trust Visitor Centre in Portsmouth, England, on Friday, where she rocked an ensemble we've seen not once, but twice, before.

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The 34-year-old brunette beauty stepped out in her favorite Alexander McQueen nautical pencil skirt and blouse combo, completing the look with a pair of navy blue heels and a matching clutch.

Middleton first sported the look during a visit to the Summerfield Community Centre in Birmingham with her husband, Prince William, in 2011.

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She donned the two-piece again in June 2014 while visiting Bletchley Park.

Middleton's appearance on Friday was a way to help inspire young children to get involved in sailing and the marine industry. According to a post by the Kensington Palace via Instagram, the 1851 Trust's educational workshops "help students engage with the science, technology, engineering and math's of @Landroverbar's challenges."

The Duchess was all smiles as she chatted with the aspiring sailors.

At one point, Middleton even joined competitive sailor Ainslie and the Land Rover Bar Team for a sailing training session. Judging by her facial expressions, it seems like she had an absolute blast at sea!

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"Check out our new star sighting," Ainslie, 39, later tweeted. "It was an honour to take the Duchess of Cambridge sailing today #bringthecuphome."

In more royal news, the Duke and Duchess of Cambridge celebrated their fifth wedding anniversary on April 29. Re-live some of their most memorable moments together in the video below.