Yesterday (Tue 18 Jan), a diver became separated from the group of people he was diving with near Bluff in Southland, New Zealand. He drifted about 2km in an hour before being spotted by 2 sea kayakers. He had deployed an SMB and was apparently floating on it. One of the kayers stayed with him, while the other alerted his dive group.
The coast guard were apparently alerted at around 1:20pm, but were stood down around 10 minutes later.
There is more information in the New Zealand Herald.