A coronial inquest into the drowning death of an international tourist on a South Australian snorkelling tour is expected to hear the tour company was operating outside of its permit zone and with limited rescue and first aid equipment on board.
Ardebby Oh Chua, 41, drowned while participating in a "Swim with the sea lions tour" hosted by Adventure Bay Charters near Port Lincoln on the state's Eyre Peninsula in December 2017.
