Her two daughters, ages 7 and 8, drowned. Her 9-year-old son survived and was able to wave for help.
Sheriff's deputies saw the 3-year-old boy walking near a road before he led them to the water.
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Little Florida Beach, located east of Long Beach where Ethel, Mississippi resident Samantha Alexander and her daughters passed away. (Google Maps)
Sheriff Ron Johnson told NOLA.com that the dangerous conditions at the beach caused the drownings. The bodies of the mother and her daughters were found roughly 100 feet apart.
"You have waves crashing onto the rocks from the Gulf, and that energy goes back out," Johnson explained. The U.S. Coast Guard assisted sheriff's deputies at the scene.
"Those rocks are very hard to climb up on, they're covered with algae and they're slick," the sheriff continued, adding that deputies had to climb using their hands and feet.
The road leading to Long Beach in Cameron Parish, Louisiana. (Google Maps)
Johnson also noted that the beach was very remote.
"There are very few camps there and not a lot of places to park," he said. "I don't blame anybody but as a sheriff, I wouldn't want anybody to go where other people couldn't see you."
Mae's Beach in Cameron Parish, Louisiana, located west of Long Beach where a mother and her two daughters drowned. (Google Maps)
The 9-year-old son was taken to a local hospital and released after a short stay. His father works in the Cameron Beach area for a liquefied natural gas facility, Sheriff Johnson said.