Made up of players from Nikao School and Titikaveka College, the side turned out to be a bit of a surprise package in the preliminary round of matches played last week.
The Barbarians finished on top after beating Nukutere 22-0 before overcoming Avarua B 19-14 in their second match.
The side will take on Arorangi, which lost both of its matches to Avarua A last week, in the semifinal today.
Avarua A will play Avarua B in the opening semi at 3pm.
Cook Islands Rugby Union development manager Ben Koteka said the Barbarians would remain the dark horse for the tournament title.
He said the Avarua teams would head into the finals as the top bet.
“After dusting off the cobwebs last week, all teams will be better prepared this week, especially the leaders Avarua, who have set the benchmark with two teams in this week’s top four, with their Year 8 students in the A-grade and the Year 7 development team in the B-grade,” Koteka said.
“The dark horse in this competition could be the Barbarians team made up of players from Nikao and Titikaveka.”
Best players from last week’s matches who are expected to sparkle again in the final round include Moana Ioane, James Tarau and Tylor Tereapii, Sione Pukerua, Iosefo Samania and Maru Willie Jr from Avarua School A and B.
From Arorangi, the Remuera brothers Nia and Iaveta and Oscar Wichman, and for the Barbarians Jessie Toa, Ryan Daniel and Troy Matutu, were impressive last week.
“See you at the Arorangi Rugby Field to watch our future stars in action,” said Koteka.
“Once again, meitaki maata to our sponsor Bluesky and also to the Arorangi Sports Federation for all their support towards age-grade rugby.”
2.55pm All teams to assemble in front of the administration tent; 3pm Semifinal 1, Avarua A v Avarua B; 3.25pm Semifinal 2, Arorangi v Barbarians; 3.50pm 15-minute break; 4.05pm Bronze playoff; 4.30pm Grand final.