"That got him breathing regularly but then he started panicking again. He was so panicked he kept rolling the board and going under."
The girls signalled for help, which came in the form of a man who swam out from the beach and two teens who paddled out on surfboards to rescue a third member of the group.
Sabrina persuaded the large man to concentrate on breathing and kicking, while they made their way to a small bay around the rocks. They were halfway to shore when more rescuers arrived in an inflatable boat, a dinghy and kayaks.
But that wasn't the end of Sabrina's problems. The big man was afraid to let go of her board, and when he finally did take hold of the boat it took a good 10 minutes to hoist him on board. They were taken back to the beach where two ambulances, police, a Kaeo fire truck and the Northland Electricity rescue helicopter had arrived.
Nine people, including the girls and two rescuers who had swallowed a lot of water, were taken to Bay of Islands Hospital by chopper and by road. All have since been discharged.
"We were perfectly fine but they wanted to take us to hospital to check us too," Amohia said.
Though both live in Auckland, Amohia has close ties to Northland with family in Kaitaia and Te Rarawa/Ngati Kahungunu descent. The pair are spending a month at Matauri Bay Holiday Camp with Amohia's family and became friends through Sea Scouts, which they say gave them skills to initiate the rescue. They have not had specific rescue training but have completed many man-overboard drills and know what to do with people panicking in the water. They are being hailed in the motorcamp as heroes, but they are not so sure. "Possibly," Sabrina said.
"I guess so," Amohia added. "The rescue boats came, but if we didn't give them our boogie boards they would have drowned. "
The rescued men were in their 30s and living in Auckland.
Both girls are starting Year 12 this year. Amohia, who lives in Mangere Bridge, goes to Te Kura o Nga Tapuwae, while Sabrina, from Onehunga, goes to Auckland Girls' Grammar School. They are members of the New Lynn Sea Venturers and help at the Aotea Sea Scouts in Onehunga.