This year's helicopter-accessed freeride ski and snowboard event is no exception, with both Bilous boys, Hank (15) and Finn (13), and their father Peter, at the heart of the action.
Mr Bilous - who runs an avalanche safety programme at Otago Polytechnic and works as a heli-ski guide - has helped out in a guiding capacity for the event in the past, and this year has run mountain safety awareness education for the junior competitors.
His sons will both compete today, weather permitting, alongside eight other skiers and boarders aged between 12 and 16 from around the world, in the inaugural Junior World Heli Challenge.
The men's and women's elite competition will take place on the two best weather days during the next two and a-half weeks.
In the past, the Bilous boys have competed alongside the adults, but the new junior event would provide ''a bit more of an even playing field'', their father said.
Finn, who Mr Bilous describes as an ''ace editor'', also shoots footage for the event's film competition.
The brothers compete in slopestyle and halfpipe ski events internationally, mainly in the United States, during the New Zealand summer holidays.
While the southern hemisphere winter is in full swing, Mount Aspiring College is ''very accommodating and supportive''of the boys' skiing pursuits, designing a programme to fit around their competition schedules.
Mr Bilous said the World Heli Challenge was a highlight on the family's calendar of events.
''It's certainly one of the most fun ones. The people involved make it seem like family.
''It's a great introduction to the sport and big mountain skiing. It's one of those things that's quite hard to break into ... it's a wonderful opportunity for the kids to ski with their mentors and see how it's done on a pro-scale.''
The event also provided Hank and Finn with a chance to make industry contacts from around the world.
None of the boys' success would be possible without their mother Emma, though, Mr Bilous said.
''She's the backbone of the operation ... we wouldn't be where we are if it wasn't for Emma.''
