A tropical shoreline, a missing woman and a husband flying toward the Caribbean with one unshakable expectation: bringing his wife home alive.

Elizabeth “Liz” Waddell, a 44-year-old physical therapist from Cary, North Carolina, disappeared Wednesday while visiting Grenada, transforming what should have been another journey abroad into an expanding international search.

Waddell was staying near Grand Anse, the celebrated resort district outside the capital of St. George’s. Her family said she went toward the water near Grand Anse Beach for a swim, according to ABC11.

Then, somehow, she disappeared.

No confirmed explanation has been released. There has been no publicly announced breakthrough and no indication from authorities that they have determined whether an accident, medical emergency or criminal act was involved.

There is only a widening search—and a family waiting for the phone call that could end their nightmare.

The Royal Grenada Police Force issued an urgent missing-person alert, asking the public to help locate Waddell. Authorities specifically appealed to fishermen, boat operators and people living along Grenada’s southern coastline to remain watchful and report anything that could assist investigators.

Waddell was pictured in the alert with short pink hair, although police described her hair as short and blonde. She has a medium build. Reports have also offered conflicting information about her height: The official notice listed her as 5-foot-5, while relatives reportedly said she is closer to 5 feet tall.

As the search gathered urgency, Waddell’s husband, Cailen, posted a deeply emotional appeal.

“My wife Liz is missing in Grenada,” he wrote, asking anyone with connections on the island to circulate the police notice.

“I am on my way there now to help search,” he continued. “I expect nothing less than Liz’s safe return.”

Those words quickly spread beyond the couple’s North Carolina community, carrying the desperation of a man forced to cross hundreds of miles while authorities searched an unfamiliar coastline for his wife.

Friends described Liz as loving and free-spirited. They said Cailen had praised Grenadian authorities for their efforts, even as the hours without answers continued to accumulate.

Behind the missing-person photograph is a woman whose life has been defined by movement, healing and adventure.

Waddell earned a Doctorate in Physical Therapy from the University of North Carolina at Chapel Hill and later opened Art of Movement Physical Therapy in Cary. Her professional biography describes more than a decade of physical-therapy experience and over 20 years working in fitness and dance.

Her interests included hiking, CrossFit, traveling and taking walks with her husband. Photographs posted online captured trips to destinations including Mexico and Thailand, along with moments shared with Cailen and their adopted adult daughter, Suwan.

But the months before the Grenada trip had also brought a difficult personal battle.

In a May health update, Waddell said she had been dealing with long-COVID or post-viral complications and chronic fatigue syndrome, alongside endometriosis and perimenopause. The symptoms had disrupted her work and active lifestyle, sometimes leaving her sleeping for much of the day.

More recently, however, she said she was improving and gradually returning to a consistent work schedule—a hopeful chapter now interrupted by her unexplained disappearance.

For investigators, every detail could matter: when she entered the beach area, what she was wearing, who may have seen her and whether any boat operator noticed something unusual offshore.

For her family, the case is painfully simpler.

They want Liz back.

The beauty of Grand Anse—its pale sand, clear water and postcard horizon—now forms the haunting backdrop to a mystery. Somewhere between an ordinary trip to the shoreline and the moment her absence became alarming, the trail went cold.

As police continue searching, authorities are urging anyone with credible information to contact the Royal Grenada Police Force immediately. Unverified speculation, meanwhile, could complicate an already difficult investigation.

On the island, boats and residents are watching the southern coast. In North Carolina, friends are sharing Waddell’s photograph again and again.

And her husband is holding tightly to the outcome he refuses to surrender: nothing less than Liz’s safe return.