Ards Swimming Club claimed the Dave McCullagh Memorial Trophy for best Irish team as the McCullagh International ended in Bangor.
The four-day meet was run to replicate the Tokyo 2020 Olympics with heats in the evenings and finals in the mornings. The competition attracted a number of Irish and British stars as athletes gear up for Olympic Trials in April.
After a 100m backstroke Irish record on Saturday, Larne's Danielle Hill equalled her 50m freestyle Irish record of 25.29 to take gold ahead of Marlin's Mona McSharry (25.83) and Maria Godden (26.78) of Kilkenny. Cookstown's Calum Bain won the men's 50m freestyle in 22.88, adding to his 50m butterfly gold from Saturday.
McSharry was back in the pool for the women's 50m breaststroke final where she closed her meet with another silver medal in 31.66. Loughborough's Sarah Vasey took the win in 31.12.
Adam Peaty continued his dominance of the 50m breaststroke with a 27.01-second swim to claim gold. Stirling's Ross Murdoch posted 27.48 for silver while 200m breaststroke champion James Wilby was third in 27.72.
Luke Greenbank won his second backstroke gold in the 200m final in style in 1:57.51. Larne's Conor Ferguson was second in 2:01.59 with National Centre Dublin's Sean Scannell completing the podium in 2:04.20. City of Glasgow's Katie Shanahan won the women's event in 2:14.06.
Ards' Amelia Kane won the women's 400m freestyle final in 4:23.54.
Ards' Grace Davison claimed her fourth and fifth gold medals in the girls' 200m freestyle and 200m backstroke. In a fantastic battle with Templemore's Rosie Whitten, she touched in 2:15.52 in the former. In the 200m backstroke, the 13-year-old clocked 3:30.88 ahead of City of Derry's Maeve McClean (2:35.54).