Video: New Zealand skiers already preparing for 2018 Paralympics

While Kiwis enjoy a summer at home, it's back-to-back winters for the country's top skiers and snowboarders.

Among them are Para-skiers Corey Peters and Adam Hall, who are training in the US as they eye up the biggest prize of them all in 2018.

When they are not on the slopes, Peters and Hall are in the gym. It's a key part of their preparation, though no substitute for the real thing.

At the Vancouver Paralympics in 2010 Hall won gold in the slalom, but since then he's branched out from the technical events to also add more speed to his repertoire. But with greater speed comes greater risk.

"If you look back at the 2014 Sochi Winter Olympics, a lot of the American athletes were knocked out by crashing, so it definitely comes with high risk."

2017 will see Peters try to defend his world super-G and downhill titles in Italy.

"If you can come away with back-to-back wins and world championship titles, that would be a massive achievement."

While Peters has been skiing for five years, after he crushed his spine in a motorbike accident in 2009, Hall's been on the circuit for a lot longer than that. 

"Ten years ago I didn't think I'd still be here and so to be here 14 years later amongst the top of the world is pretty cool ," said Hall. 

As much as they're about the here and now, ultimately all roads lead to the 2018 Paralympics in South Korea.