The amphibious squad will challenge clubs from across the state at the two-day carnival in Shepparton.

WSC female captain Tarsha Umbers is set to lead the way in the pool.

The 15-year-old is contesting seven events and should perform well in the long distance races.

Head coach Jayson Lamb said Tarsha had a busy weekend ahead.

"She will take a leadership role and guide the younger ones," he said.

"But she will handle the work load no worries."

Tarsha's sister Kirra will also step onto the blocks on seven occasions.

Lamb said the 12-year-old would make waves in the 100 metre and 200m races.

"She's a real up-and-comer," he said.

"The next year will be very important for her."

Lamb said another rising star was Maryke Ralph.

Maryke, 14, has five assignments, with backstroke and breaststroke her most preferred styles.

"She's put in a lot of work," Lamb said.

"She puts in the hard yards at the pool and she's attended a lot of cross-training sessions.

"She's climbed up the rankings slowly but surely and is just a lovely person."

Lamb said Maryke had been training particularly well in the weeks leading up to the championships.

Last year WSC came an overall second to Traralgon at both the short course and long course titles.

Lamb predicted a similar outcome again.

"We've got 19 going but we could have had 40 going," he said.

"I've decided to back a lot of older kids off and give them some time for themselves.

"But for the team that is going I'm looking forward to seeing some personal bests.

"If that leads to a gold medal that's great."

Tanika Cameron, Jamin Baulch, Liam Darcy, Isaac Jones, Dylan Lee, Michael Krybolder and Gabriella Vallence are also expected to do well.

After the carnival, swimmers will plunge into preparation for the Victorian Age Short Course Championships in two weeks' time.