A pod of whales, believed to be pilot whales, is seen stranded on a sandbar at Macquarie Harbour, near Strahan, Tasmania, Australia. (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. REUTERS

A pod of whales, believed to be pilot whales, is seen stranded on a sandbar at Macquarie Harbour, near Strahan, Tasmania, Australia. (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. REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. REUTERS

A pod of whales, believed to be pilot whales, is seen stranded on a sandbar at Macquarie Harbour, near Strahan, Tasmania, Australia. (AAP Image/The Advocate Pool, Brodie Weeding via Reuters)

A pod of whales, believed to be pilot whales, is seen stranded on a sandbar at Macquarie Harbour, near Strahan, Tasmania, Australia. (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. REUTERS

Rescue efforts to save whales stranded on a sandbar take place at Macquarie Harbour, near Strahan, Tasmania, Australia, September 22, 2020. REUTERS