Bishop's aunty and family spokeswoman Myra Iraia said they all thought the jet ski safety campaign was a "brilliant idea", but they wish it had been around earlier.
"It's good to see that from the tragedy that's happened to us as a family, somebody is actually taking steps and measures to make sure it doesn't happen to someone else.
"We're rapt that it's being taken seriously and we're rapt to be invited to take part in this launch."
Ms Iraia said the family was also "very proud" of Mr Maaka for taking part in the campaign and said Teimana Harrison would also have been there if he wasn't in England.
Mr Powell said it was great the regional council had decided to take a proactive approach rather than being reactive.
"Our job as the maritime unit is to educate before we regulate. Our population is growing, but we haven't got any more water. It's becoming more congested and we run the risk of having more near misses and accidents, and in the worst case, fatalities."
He said the maritime unit could not force people to wear life jackets but they recommended wearing them.
"We want people to enjoy our waters, but do it safely. For those that don't do it safely, we will be jumping on them.
"They're not just exposing themselves to danger, but your friends and your family - that's not fair on anyone."