"The waves are massive and I have no life jacket on. … I just kept thinking 'just keep swimming, just keep swimming,'" Austin Appelbee said.
A 13-year-old boy is credited with saving the lives of his mother and two younger siblings with an hourslong swim after the family was swept out to sea off the Australian coast.
Austin Appelbee swam 4 kilometers (2.5 miles) to shore to raise the alar... [3300 chars]