Ruby Anderson

Swimming over it will risk being dashed against sharp rock.

Then, just above the crest of the swell, Glenn catches a glimpse of an island, a flat, rocky protrusion barely shading the horizon.

It is their best hope.

Before they set off swimming for the island, the shipwrecked sailors activate their EPIRB beacon.

This essential piece of kit sends out a distress signal via satellite.

If it works as it should, it will transmit alerts to all search and rescue authorities in the area.

Dane straps the EPIRB to his person for safekeeping.

Then the five of them start to swim.

Given Ruby's condition, Glenn has to hold his daughter with one arm and paddle with the other.

From the debris, he has managed to grab a wooden oar, which the 11-year-old now grips for some extra buoyancy.

He's also found a single diving flipper, which helps as he kicks.

Even so, in the vicious conditions, it's hard to make progress.

It isn't long before Glenn and Ruby have fallen well behind the others.

Glenn lifts his head.

The other three are barely visible now.

Tiny specks of red against the dark ocean.

There's no use trying to catch up.

The distance is too great.

The current's too powerful.

Time for a change of plan.