A time to celebrate. Shannen Doherty and her husband, Kurt Iswarienko, celebrated their five-year anniversary in Mexico on Saturday, October 15, amid the Beverly Hills, 90210 alum’s ongoing battle with cancer.

The 45-year-old actress shared several stunning photos from the couple’s getaway, including one image of the pair petting a zebra.

“5 years ago today I made one of the best decisions of my life,” she captioned the photo. “I said ‘I do’ and married my best friend and soul mate @kurtiswarienko. Life has thrown us some huge curves and we have faced them together with strength, love, passion and a desire to stand next to one another thru it all.”

“I have learned what partnership truly is with this man,” she continued. “Yes we love to travel and have adventures together like today … hanging out with Vicky the zebra but everyday is an adventure with Kurt regardless of where we are and what we are doing. #thisistruelove #anniversary #mexico.'

In another photo that Doherty — who has been undergoing chemotherapy in her battle against breast cancer — shared on Friday, October 14, she and Iswarienko pose in front of a row of sculptures while wearing matching shades.

“Mexico City. What an amazing place,” the actress captioned the image. “I’ve been to many spots in #mexico but never here. The food scene is on fire here, history, charm … It’s got it all including childhood memories for @kurtiswarienko who lived here when he was a kid.”

Earlier in October, Doherty shared an image of herself and Iswarienko goofing off for the camera as part of the #loveyourspousechallenge.

The former Charmed star explained that her close friend Sarah Michelle Gellar had “softly suggested” that she and her husband accept the seven-day challenge. Doherty then proceeded to share seven beautiful memories with her “soulmate.”

One picture, taken from the couple’s 2011 nuptials, had a particularly touching caption accompanying it. “Our wedding was exceptional and not for the big event it was,” Doherty wrote. “It was exceptional because we committed for better or worse, in sickness or in health to love and cherish one another.”

“Those vows have never meant more than they do now,” she continued. “Kurt has stood by my side thru sickness and makes me feel more loved now than ever. I would walk any path with this man. Take any bullet for him and slay every dragon to protect him. He is my soul mate. My other half. I am blessed.”