Richie McCaw and the rest of the Cure Kids team set off on the rapids of the Matakitaki River this morning on the fourth day of their Godzone adventure race.

They've been enjoying their race so far, even breaking into song as they prepared to paddle across Lake Rotoroa on Monday afternoon.

They told race staff they were "feeling great" and hoped to "push up the hill" during the trek on the other side.

They left on their canoes at 8.25am, headed for Murchison and the next mountain biking leg.

The team won't be tackling the now legendary Horse Terrace Rapid as Godzone's safety manager has decided to close the rapid, but there will be plenty of thrills in store on the river.