The unit enjoyed strong community support; "Coastguard is an easy brand to sell up here," Mr Gemmell said, adding that the unit would cover the area from Cape Reinga to Knuckle Point, the entrance to Doubtless Bay.
"It's a big area, but the boat is well equipped with everything we need," he said. "Today is a major milestone, the result of a lot of hard work by a lot of people."
The next goal would be to erect a building, expected to cost around $60,000. That project was already under way, and would cater for the larger boat - 9.5m - that would be needed at some point in the future.
That meant there would be no end to the fundraising. So far money had been raised by selling hangi to 90 Mile Beach Snapper Bonanza contestants, delivering phone books, felling trees - "anything that would put money in the bank."
Sponsors were vital too. With them, Mr Gemmell said, the unit would have had to work "a heck of a lot harder" than it had.
"It's taken huge commitment to get here," he said on Saturday, "and I could not be more proud to have been involved."
Northern region CEO Callum Gillespie told the gathering that in the last year Coastguard volunteers had assisted 6800 people who had been in some form of distress. The organisation had an educational as well as a search and rescue role.
"The capability we have here now can really make a difference," he added, also acknowledging the support received from the community, Foundation North and the Northland Regional Council.