As the five people were already close to shore Coastguard monitored the situation then checked the area for any other people.
She said the group appeared to be confident coming into shore and were wearing life jackets and wetsuits.
"The danger was that it was on dusk and it was winter conditions," she said.
If they had been further out at sea the situation could have been much worse and Coastguard would have had to bring them on board, she said.
The waka was one of three which had been out training.
Wills said if boaties did capsize it was important not to leave the vessel unless very close to shore, as this group was, because it acts as a larger flotation device and can also be spotted much easier than a person in the water, especially in the dark.