The woman, a 27-year-old whose name has withheld until her family has been informed of her death, was swimming with her friends at Ao Koh Hong, an island located northwest of Ao Nang in Krabi province, when she suddenly disappeared at around 3pm.
Beach guards and park officials helped locate the victim and brought her, unconscious, to shore. CPR was administered before Marine police took her to Krabi Hospital where she was pronounced dead upon arrival.
Than Bok Khorani National park officer, Champen Phompakdee, told police that the victim had gone on a trip with 12 friends and they had all gone swimming in a designated area. The water in the area was between 1-2 metre deep.
Police are waiting for doctors to confirm the cause of death and have informed officials at the Krabi Tourist Rescue Centre to contact the Chinese Embassy.