Intro:

The fleet in the Volvo Ocean Race try to avoid icebergs in the Southern Ocean.

Script:

SOUNDBITE: (English) Will Oxley, Team Alvimedica:

"When the breeze is up and the gusts are particularly high, we have a hand on each sheet and we have someone on the grinder so you have got to have four people on deck. Otherwise you have to have a reduced sail. So in order to push the boat, you need the four people for safety."

SOUNDBITE: (English) Simon Fisher, Abu Dhabi Ocean Racing:

(about the first Ice Limit modification on Friday 20 March 2015)

"A few days ago they moved it all on because there's a one-kilometre-wide iceberg that appeared, and then it appeared to drift faster than they expected as well because there's a current that's denoted by these arrows, so yeah, there's definitely plenty of ice around."

SOUNDBITE: (English) Daryl Wislang, Abu Dhabi Ocean Race:

"So if we hot something hard like an iceberg or (indistinct) or wood or something then it will destroy the crash valve and not the hull (indistinct) will remain intact so we don't get water."

SOUNDBITE: (English) Phil Harmer, Abu Dhabi Ocean Race:

(on the danger of icebergs)

"I think it's the ones you can't see, the ones that are more danger because probably still half the size of this boast under water, and easy enough to sink us, and you don't even know they're existing, so...."