Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Rescuers were trying to refloat hundreds of whales stranded on a sandbar off the remote west coast of the Australian island of Tasmania on Tuesday, hoping to end one of the country's worst beaching events. AAP Image/The Advocate Pool, Brodie Weeding via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Government scientists estimated about 90 of around 270 pilot whales trapped in shallow water had died since the stranding was reported a day earlier. AAP Image/The Advocate Pool, Brodie Weeding via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Aerial footage showed large numbers of the animals largely prone on a wide sandbar at Macquarie Harbour, about 200 kms (120 miles) northwest of the state capital Hobart, while others floundered in slightly deeper water. AAP Image/The Advocate Pool, Brodie Weeding via REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. Around 40 government scientists, 20 police officers, and local fish farmers and volunteers were involved in the rescue attempt, which experts said was the hardest they had encountered. AAP Image/The Advocate Pool, Brodie Weeding via REUTERS

People assist stranding whales in MacQuarie Heads, Tasmania, Australia in this picture obtained from social media dated September 22, 2020. RYAN BLOOMFIELD /via REUTERS

Stranding whales are seen in Macquarie Heads, Tasmania, Australia in this picture obtained from social media dated September 22, 2020. RYAN BLOOMFIELD /via REUTERS