Dunedin’s young artistic swimmers will focus on flawless formations as they aim for a spot on the podium this weekend. After winning gold in the dolphin combo section at last year’s event, the Aquagold Artistic Swimming Club team will face a tougher test as they compete at the Artistic Swimming NZ South Island Championships on Saturday. Aquagold Artistic Swimming Club president Phyll Esplin said the four members had moved from the dolphin tier to the aquanauts division. Pitting themselves against peers and older competitors will serve as an essential test for the young athletes. "You have to give them a challenge," Esplin said. The team, comprised of Mila Bareiter, 13, Emma Horan, 13, Sasha Luke-Tychinskaya, 15, and Catalina Costa Barnett, 15, have been working together for about 18 months. The girls were not just teammates; they were friends, she said. "That is really a huge positive. "Once you have got a team that are working well together ...…