Katie Austin plays golf in a Bikini to celebrate 'Last Day' in her 20s

Katie Austin celebrated her "dirty thirty" birthday in style, teasing fans with photos from her big weekend bash online.

The Sports Illustrated Swimsuit Rookie of the Year posted just under a dozen new pictures to her Instagram grid, documenting her weekend getaway to the Hawaiian island Lanai.

"Hi from my birthday weekend!!" she captioned the Oct. 1 post. "Last day of being in my 20s?."

Alongside the sweet sentiment, Austin handpicked 10 of her favorite memory-making moments from the trip, including photographs of herself golfing in a bikini, posing in natural springs, and of course, indulging in perfectly plated meals and colorful cocktails.

Other images suggested the birthday girl enjoyed a quiet couples massage with her fiancé, Lane Armstrong, in a private patio surrounded by nature and time spent in the great outdoors–even if it was only from the view of her terrace.

Her mom, celebrity fitness trainer Denise Austin, was among those rooting for the YouTuber, cheering in the comments, "Every day you have made my life filled with joy!! You radiate kindness and a beautiful heart.. I can’t believe my baby girl will be 30 tomorrow!!! I love you .. xoxo."

On her big day–Monday, Oct. 2–Austin shared another, more romantic look at her little getaway.

"Woke up 30 flirty and thriving!!! feeling so much love today? best day ever spent with the love of my life," she gushed alongside the post, featuring a handful of never-before-seen bikini photos.

Her mom also wished her well in the comments of this post, exclaiming, "HAPPY BIRTHDAY SWEET WONDERFUL KATIE!!!!!!! I love you honey bunny!! You deserve the BEST birthday ever!! Xoxo."

Link to story: https://bikininewsdaily.com/bnd/KatieAustinplaysgolfinaB-4268