Video of the beach incident, widely shared on social media, shows the woman grabbing a red warning flag erected by lifeguards and running into rough seas despite hazardous conditions.
Lifeguards immediately intervened after seeing her enter the water in an area marked as unsafe for swimming due to strong waves and rocky shoreline conditions.
As they attempted to bring her back to safety, the woman ran between the beach, rocks and the sea, prompting a tense chase as lifeguards tried to prevent her from being swept away or injured.
After several attempts, lifeguards succeeded in bringing her safely back to shore and contacted police to assist in controlling the situation.
The incident followed reports that the same woman had caused chaos near Surin Beach on Tuesday night (June 9).
Videos shared online showed the woman walking naked along Sri Soonthorn Rd in Cherng Talay while shouting and behaving erratically.
According to witnesses, staff at a nearby massage shop and a foreign man attempted to cover her with towels, but she repeatedly removed them and continued acting aggressively.
Residents alleged that the woman entered businesses, damaged vehicles, chased passersby and attempted to assault people, causing alarm among local residents and tourists.
Officers from Cherng Talay Police Station were called to the scene and eventually brought the situation under control before taking the woman into custody.
Police have not yet confirmed the cause of the woman’s behaviour and are continuing their investigation. Authorities are also considering what legal action may be taken.
Officials have reminded visitors to obey beach safety warnings, particularly when red flags are displayed, as they indicate dangerous sea conditions and swimming is prohibited.