Ferkins, whose speciality is the 1000 metres, started the regatta with gold in the u18 men’s K4 1000m, the Kiwis beating Australia by 1.5 seconds.
Later that day he won his K1 1000m heat in a time of 4 minutes 11.82 seconds and followed it with victory in the final in just over four minutes, two seconds clear of fellow New Zealander Fletcher Moles.
In a close K4 500m race, Ferkins and his crewmates collected silver behind the Australians.
Hoskin’s first hit-out was the u18 K4 200m, which the New Zealand team won comfortably, 2.8s ahead of Australia.
Her next race was the u21 K1 200m, which featured Australian u23 world championship squad paddlers who had season-best times faster than Hoskin’s.
Undaunted, the Poverty Bay paddler finished second in a final won by Australian Ella Belle.
On Saturday, Hoskin paired with fellow 200m specialist Olivia Brett, of Christchurch, and they proved too strong for Australians Kailey Harlen and Anthea Warne.
They won the u18 200m by 2.7s and 500m by 1.7s.
Such form bodes well for the pair’s junior world championship campaign in Bulgaria.
In the K4 500m, Australia reversed the 200m result, pushing Hoskin and her New Zealand crew back to silver.
Hoskin’s final gold came on Sunday in the u18 K1 500m.
While the 200m is an all-out sprint to the line, the 500m requires race plans to match the individual’s strengths. With Hoskin being a specialist 200m paddler, team coach Jasper Batts had a plan drilled into her . . . a fast 50m off the line, settle in for 250m then up the rating for the final 200.
She followed it to the letter, forging a lead of over a boat-length by the halfway stage and holding on to win from fast-closing Australian Kailey Harlen in a time of 1:59.09, with Brett third.
Alex Bermingham had a solid programme of u21 races and team relays.
Her best result was silver in the K4 500m. She paired with Hannah Baker to claim bronze behind Australia and Japan in the K2 200m and 500m, and also had a third in the K4 200m.
Stacey Warren-Moiser, in her first international outing, won gold as part of the u16 K4 200m crew, 0.6s ahead of Australia, and bronze in the K4 200m.
Zach Ferkins picked up bronze in the u21 K1 200m in an incredibly close race in which 0.7s separated seven paddlers.
An addition to the regatta was the age-group and all-age mixed relays over 200m.
New Zealand won the u16 and u18 mixed relays (with Sam Ferkins being a member of the u18 crew) but couldn’t repeat it in the all-age race. Zach Ferkins and Hoskin were in the silver medal-winning crew.