When your location is a snowy mountain in the winter the obstacles are pretty extreme.

Experiencing the world through Endless secondhand information isn't enough. If we want authenticity we have to initiate it.

We faced blizzards, sub-zero temperatures, and of course dangerous snow conditions and vertiginous drops. That's what you get when you're working with fickle mother nature - you start out with a solid plan and it always changes, so you have to evolve and adapt.

Pretty much everywhere we went we had crazy weather. I think Russia was probably one of the toughest places for us weatherwise, but even Alaska, the last three years have been somewhat subpar when you look at historically how Alaska can shape up.

They were all just chapters in the book, stepping stones. Each was perfect for where we were at the time, and I'm proud of them all. We couldn't have done this film [The Fourth Phase] without the other films pre-dating it and being part of the process.

The idea [of the Fourth Phase ] was that by taking a closer look at where our weather comes from, and the processes involved in making it, we could all walk away with a greater appreciation of water in its various magical forms.

I'm very much looking forward to doing nothing fixed, just riding for fun.