Takapuna Boating Club are playing host to their 14th world championship event, with the 470 junior world championships starting this weekend.
More than 30 boats from 13 countries will be competing in the regatta, including three New Zealand entries in the women's fleet and six local boats in the open field.
The first points race gets under way today, with the medal races scheduled for next Friday.
With several teams entered in the age group event also regularly competing in the senior classes, organisers are expecting tight racing.
Several of the New Zealand entrants have previously represented the country at the ISAF Youth Worlds, including James Turner, Ben Goodwin, Sarah Berry, Emma Berry, Vicki Francis, Erica Dawson and Bianca Barbarich-Bacher.