Seasoned old salts reckon rowing into the cliff-sized waves at Piha is a good way of separating the men from the boys.
That doesn't take into account the four boys from Sunset Beach fast winning the respect of surf-boat crews twice and three times their age.
Pukekohe High School 15-year-olds Jack Boulton, Jack Morgan and Carl Morgan, with 16-year-old schoolmate Ryan Brash, will compete in tomorrow's Piha Big Wave Classic.
They are by far the youngest crew on the national surf-boat scene, still with three more years left in the under-19 division, but they have the luxury of knowing they've already tasted the spine-tingling swells at Piha this time a year ago.
"Last year at Piha was the biggest surf we've been in and we copped a bit of a hammering," Boulton explained. "We lost an oar and Ryan got nailed but it was good fun and a pretty good learning curve."
The quartet linked up with sweep Ted Marsh at the beginning of last season, shortly after passing their surf lifeguard awards. They turned up at the beach last year decked out in helmets and safety vests, wide-eyed and nervous, but have quickly found their niche.
"They are absolutely addicted - they love it now," Sunset surf-boat manager Terry Wyllie said. "They're a lot more confident and you can see their bodies developing a bit more size and a lot more rowing muscle.
"Things are becoming second-nature to them now and they've improved out of sight in just a year."
The Piha event doubles as the third round of the national series, although the first round was cancelled when a weather bomb hit Paekakariki, placing even more emphasis on racing well this weekend. Women's crews will also race, along with open and age-group men's crews.
With a 3m swell and off-shore winds predicted, Piha stalwart Mark Bourneville insists his home beach won't be a place for the faint-hearted when racing starts at 8am.
"Sunset rowed last year in probably the smallest surf we've had in the last decade but this year will be a bit different," Bourneville said. "The offshore in the morning will stand the waves up and you won't want to be under one when it comes raining down. Rowing Piha has always been about smart sweeping and good crew work though - if you've got that, you can get yourself on to the podium."
The national surf-boat series concludes at Waihi Beach next week, with the national championships in Whakatane a month later.