A 68-year-old English granny drowned in her five-star hotel’s pool while vacationing in the Dominican Republic — her first vacation in 12 years, an inquest heard this week, reports said.

Marie Palfreeman, a divorcee from Court Close, Kidlington, died on Feb. 3 at the Hotel Bahia Principe, the the Oxford Mail reported Friday.

Palfreeman, who suffered from existing medical conditions, was swimming with her sister-in-law Linda Tinson when she went under.

“Marie had very poor health, but still I do not understand how she got into difficulties so quickly,” Tilson said in a statement to the Oxfordshire Coroner.

“She was very close to the side of the pool and in a similar position when I saw her floating on the water.”

The coroner, Darren Salter, ruled Palfreeman’s death an accident.

Tinson told authorities the two went in the pool days before the grandmother-of-three’s death, but they got out when Palfreeman had shortness of breath, the report said.

The Domnican Republic has been rocked in recent months by a steady stream of tourist deaths at resorts across the country.