At least she was partying by herself. Kourtney enjoyed relaxing with her closest friends on a boat, taking snaps of their vacation, while wearing a tiny navy blue bikini.
In celebration of turning another year older last Tuesday, the Keeping Up with the Kardashians star trekked down to Anaheim, California, with two of her children — oldest son, Mason, 7, and daughter, Penelope, 4 — her ex Scott Disick, and younger sister Kendall Jenner to enjoy some amusement park fun, according to numerous park-goers.
The mother of three and her family were spotted throughout the day at Disneyland, including nearby Thunder Mountain, where a photo of Kourtney, Scott, Mason and Penelope was snapped by a Twitter user.
To celebrate the oldest Kardashian sister, multiple family members wished her a happy birthday on social media and on their apps, including momager and matriarch Kris Jenner, Kim Kardashian West, and Kendall.
This article originally appeared on PEOPLE.com