Cayden Earles won the Bridge to Bridge Cup and the Central Cup for being the first swimmer and female to finish not in a wetsuit. She finished seventh overall with a time of 29m 53s.
Just one place behind her, Ann Rogerson took out the Ingleby Morrison Cup and McFarlane Cup for being the second female to finish and the first master not in a wetsuit.
Twelve-year-old Isla Jones was the youngest competitor of the day.
Rounding out the trophy winners were Margie Chiet, taking out the Fantham Cup and Tony Fantham, winning the Memorial Trophy for being the oldest female and male respectively.
Organiser Margie Chiet has been involved with the annual swim since 1996.
"It was brilliant. We had a lot of wonderful feedback, I was really pleased."
After not being able to run the event last year due to the Covid-19 lockdown, Chiet said it was a great day in the water.
"We were really fortunate because the next day was level 2, we were lucky.
"It was a fabulous sunny day for a swim. It was a bit choppy at the start and then you find your space and it was good. It was a very fast swim, a lot of people would've done personal bests."
Chiet acknowledged The Rutland Arms Inn, Mud Ducks, Wanganui Veterinary Services, Pet Essentials, 25 Somme, Splash Centre, Victoria Dental and the Whanganui Produce Centre for all the prizes awarded and Wanganui Surf Lifesaving for providing on-water safety.