A Baylys Beach resident said one of the whales euthanised was severely injured.
DoC said it don’t know why the strandings occurred.
Baylys Beach Surf Life Saving Club captain Kyran Gillespie told the Advocate he was the one to call the stranding hotline when the first whale was spotted on Monday.
After collecting buckets, hats and towels, his team got stuck in to buy time until someone qualified could help.
Gillespie has attended several strandings and said he had done some training with Project Jonah.
“I took over until DoC turned up, just making sure everyone did the basic — keeping them wet, getting the towels on, uprighting the whales,” he explained.
Mark Buckingham, who was visiting family, was told by a local surfer about 1.30pm on Monday that a pilot whale had washed up.
There were a few people “keen to get stuck in” and aid the stranded creature, but the rain and high tide made it difficult for others to access the group, he said.