Ireland's Eve McMahon defends her U21 World Championship Title in Viana Do Castelo, Portugal, on Wednesday, just weeks before the youth star makes her Olympic debut in Paris 2024.
The Irish Sailor of the Year is the only sailor in Viana who will be competing at both events this summer, an indication of the depth of the Howth star's ambitions.
McMahon won the title last year in Tangier, Morocco, before securing Olympic Qualification for the ILCA 6 class.
Fiachra McDonnell of the Royal St. George Yacht Club and Tom Coulter of the East Antrim Boat Club will compete in the Men's U21 ILCA 7 class for Ireland in Viana.