The Big Bang Theory actress turned 30 on Monday, Nov. 30, but celebrated her birthday early with a trip to Mexico. The well-known animal lover visited Black Jaguar-White Tiger founder Eduardo Serio at his wildlife sanctuary, bringing along her younger sister, Briana Cuoco, who turned 27 on Sunday.
"2 planes, 12 best friends, one 30th bday, destination unknown = priceless," Kaley Instagrammed on Saturday along with an adorable picture of her sporting a birthday hat.
Kaley's milestone birthday comes two months after her surprising split with her ex, Ryan Sweeting. The sitcom star has made no secret about her desire to move on. She recently decided to get a back tattoo covered up that marked, in roman numerals, her Dec. 2013 wedding date to Sweeting.
"Note to self -- do not mark your body with any future wedding dates," she cracked on Instagram.
ET caught up with Kaley earlier this month at the All-Star Dog Rescue Celebration at Barker Hangar in Santa Monica, California, where she talked about the "main man" in her life -- her adorable dog Norman.
"He's everything," she said. "We've been through a lot together and, yeah, he's very near and dear to my heart."