Yep, that’s the one. Also found a podcast about it ‘Against the Odds’, not a whole lot added from the book, however there is an interview with one of the Pom divers that found the kids.The one by Liam Cochrane?
There's an audiobook version with him reading it, it's very good.
There was a radio station playing a chapter or so every night on the graveyard timeslot.
I managed to catch it a number of nights, thanks to insomnia. Great listening.