Due to the size of the roadworks on State Highway 4, the event was moved across the river from the club headquarters on Anzac Pde to the Wanganui River Top 10 Holiday Park in Aramoho.
"This is the best weather we've had for a race, and the least competitors," said spokeswoman Melina Holmes.
"Listening to the athletes at the end, they really enjoyed the change of venue finding the two-lap swim course really nice and the bike being slightly flatter and with no wind was thoroughly enjoyed."
Some regular competitors, like national representative James Wright, just did certain sections of the course as a regular training run.
The quiet Sunday morning contrasted the frenzied activity at Springvale Park the day.
Starting with the under 6-year-olds, the children ran the boundary section of the back field, with the course increasing in size for each age group, before transitioning on to the bike section along the same stretches of grass then finally jogging into the Wanganui Splash Centre for either one or two laps of the racing pool.
Little Jennifer Ramage, 6, was the first individual competitor home.
It had been a hard run followed by a good bike leg, but she mostly liked the swim "because it wasn't that long".
That lack of time in the pool had actually upset Tyler Pike, 4, at his age already a regular mountain bike competitor and the first boy home for the under 6s.
"I just still want to swim," he complained to his mum.
In the under 9's, Tadhg O'Connor and Maggie Jones, both 9, were the first competitors home.
O'Connor said the event was better than previous Weetbix Tryathlon's he had entered, while Jones felt it was exciting as school triathlons she had taken part in.
Of course, having the pool leg to finish was the best as "it cools you off, after the bike and the run".
In the under 12s race, Dillon Adrole, broke the one-hour mark and was well ahead of the rest of the field.
Given he made it look so easy, the 12-year-old was asked what had proved the toughest section.
"Probably the bike," he said. "Just the grass is long, hard to ride through it."
The club's final senior race for the year will the Prison Escape from Kaitoke (The Sequel) on April 13.
Holmes said they were hoping for a good turnout and would be having a barbecue afterwards.
"It's a good opportunity for people if they want to have a go," he said.
"They don't need a road bike as it's all off-road, a nice safe swim in Lake Pauri, a mountain bike and run through the farm lands."
