"We're just overwhelmed to have beaten the Brazilian girls and taken out the gold.
"We have to get a good night's rest as we still have a chance of winning overall with the down river left to go. We'll be going for it."
The under-23 girls - highly motivated after their fabulous sprint and head-to-head performance on Saturday, kept it all together for a very clean second run in the slalom that was enough to beat second placed Czech Republic by 12.38secs after penalties.
With three gold medals out of three, the youngsters led overall by 81 points and had a great chance of winning the big-scoring downriver and securing the overall honours.
The Kiwi men took their first medals today with second place for the under-19 crew and third for the under-23 crew.
Both races were hotly contested, and the gold headed to the crews with the fewest penalties on the demanding course.
The Czech Republic, winners of the under-23 category, produced the slickest performance of the day in their first run, which was both fast and clean and left rivals more than 50 seconds in arrears.
They couldn't quite match that on their second run, but the first was still good enough to leave the rest in their wake. Brazil was best of the rest, followed by the Kiwis, Russians, Japanese, Italians and Great Britain.
Russia dominated the under-19 category - finishing 24.77secs ahead of the Kiwis after penalties.
Turkey took third and the bronze, followed by the Czech Republic and Great Britain.
From Kawerau and the Tarawera, the under-23 and under-19 crews then headed off to New Zealand wilderness - the Rangitaiki River in Murapara - to face the ultimate crew and athlete test - the downriver.