Jack Entwistle and Georgia Young earned one of the region's most prestigious trophies at the 21st annual Whalebone Longboard Classic.
Only two men and two women remain in contention for the 21st Whalebone Classic titles.
Home-grown local talent and the current Australasian longboard rankings leaders cruised to the Semis in Western Australia.
Locals hold ground against solid field in perfect surf at Cottesloe, Perth.
WSL Australia/Oceania Regional Champions to be crowned this weekend.