An elderly Japanese woman has died while snorkelling at the Great Barrier Reef£¬ attraction in a month.
The 75-year-old was pulled from the water on Tuesday at Moore Reef£¬ about 45km from Cairns.
The woman£¬ who had been snorkelling with a tour group£¬ was given CPR but could not be revived.
Last month saw the deaths of two French tourists in their 70s and a 60-year-old British scuba diver.
Broadcasting Corporation said there were 10 deaths in total at the reef this year£¬ average.
It quoted the Association of Marine Park Tourism Operators as saying that most of the victims were elderly and had pre-existing medical conditions.
A spokesman said Wednesday they were considering regulation tweaks following the latest incident involving the Japanese woman£¬ such as making visitors over a certain age acknowledge the risks associated with snorkelling and diving.
'While we are very proud of the fact we have the safest snorkelling in the world£¬ we¡¯ve got to sit down and have a really close look at all these events and see if there¡¯s anything we can do£¬' Col McKenzie said.
¡¯s most popular tourist attractions£¬ of individual reefs and hundreds of islands along the Queensland coast.
More than two million people visit it very year£¬ generating more than A$2bn in tourism revenues.