She first showed her pet calf, age 4, and had since shown cattle across the South Island.
Each year, programme members, aged between 14 and 17, had a chance to win a trip to either of the Holstein Friesian championships in the South Island or North Island.
Holstein Friesian NZ organised her return travel and billeted her with local Holstein Friesian NZ members, the Wakelin family, of Belbrook Farming.
Simmons spent three days with the Wakelins and helped them prepare for the show including washing and clipping their cows.
Robbie Wakelin said his family were impressed with Simmons throughout her stay.
"She was a tremendous help and was a well-deserved recipient of the trip - she really got stuck in and did a good job."
Simmons said a highlight of the show was leading the Wakelin's Jersey heifer, Belbrook Choice Lulu, and winning the title of South Island Junior Champion Jersey — the cow she led to win the handling section.
"Attending the show was awesome. I got to meet lots of new people and talk about all things cows, and it was cool seeing cattle of a high standard compete."
Youth programmes helped keep breed associations ''alive'', she said.
She encouraged other Black & White Youth members to apply for opportunities offered by the association, particularly if they had limited experience in attending shows.
"It's a great introduction to the showing circuit, and a good opportunity for a 'newbie' to meet people with similar interests."