Kathy Ireland is expressing her relief that her longtime husband, Greg Olsen, was able to escape a horrific boat explosion.

“Engine exploded and a fire quickly melted all navigation equipment and survival raft!” the supermodel, 63, captioned an Instagram Reel shared Friday, which included footage of the vessel ablaze on the water with clouds of black smoke billowing out of the flames.

Ireland explained that she was “on the road for business and grandchildren,” which left Greg “out alone” on the boat.

“Life is really hard and really beautiful,” she wrote of him making it out unscathed. “God is great.”

The California Post exclusively reported Friday that Olsen jumped into the Pacific Ocean before being rescued off the coast of Santa Barbara, California, by a good Samaritan in a kayak. The incident, which left him with no injuries, occurred roughly three miles offshore from El Capitan State Beach on Tuesday.

Ireland also added a note she sent Olsen about the ordeal and the tragedy that befell his beloved boat, the 4th Watch.

“My heart is both heavy and full. Heavy because I know the love, sweat and life you poured into this vessel,” her message to Olsen began. “This vessel brought so much joy and so many blessings to our family and countless others. My heart is heavy with yours.”

Ireland called the 4th Watch “more than a boat” and said her heart was “full because of the outpouring of love and support” that had been sent their way.

“I’m so thankful to all who rushed to pray and come to your rescue,” she continued. “I’m so thankful God gifted you with a brilliant mind to navigate this disaster so seamlessly. I’m eternally thankful to Him for loving and rescuing you.”

“Though the vessel is no more, the 4th Watch is forever. You named that boat so profoundly. He has so much ahead for you! I’m so proud of you,” the actress and businesswoman concluded.

In a post of his own, alongside a photo of the ship from better days, Olsen wrote of the boat, “I loved her. This is how she deserves to be remembered. I’m so so sad.”

Page Six has reached out to Ireland’s representative for additional comment.

Ireland married Olsen, a physician, in 1988. During their nearly four-decade marriage, the couple has welcomed three children: son Erik, 32, and daughters Lily, 28, and Chloe, 23.

Ireland, who has appeared in 13 consecutive Sports Illustrated swimsuit issues, has been dubbed the world’s richest supermodel.

The fashion icon largely amassed her staggering wealth from licensing her name to scores of products throughout the years via her company, Kathy Ireland Worldwide.

Earlier this year, Ireland sued her business managers for allegedly fumbling her massive fortune, accusing her former team of betraying her trust “on a staggering and unconscionable scale.”