At 12:14 p.m. on Friday, emergency responders were called to an adult female being pulled from the water at Kapalua Bay in West Maui.
When police officers arrived at 12:24 p.m. bystanders on the beach, including a vacationing physician were performing CPR on the woman. Paramedics and firefighters arrived soon after and continued advanced life-saving efforts.
The woman was eventually transported to Maui Memorial Medical Center in critical condition.
The woman, a 73-year-old visitor from Denver, Colorado was snorkeling with a family member about 200 feet from shore when the woman suddenly became unresponsive.
The family member called out for help and a bystander on a paddle board came out to render aid. After the woman was brought to shore on the paddle board, bystanders rushed in to administer CPR.
The woman had been using a traditional two-piece snorkel and mask.
Paramedics and firefighters from Napili responded to the incident.