In reply to PilkingtonD:
I did whistler ski season 13/14 working as instructor. Getting that role as a brit without prior experience was tricky, they had a lot of returning staff from previous seasons, or applications from staff that had worked in other resorts.
There were three or four companies offering a route in, where you did four weeks of training with them, then the CSIA/CASI instructor test. Not sure if BASI without experience held any weight. Companies were Alltracks, Yes, Oyster. Marketed as "gap year" or "university" schemes. To get on this, you needed confirmation of visa already, then CV and screening interview with the staff of these companies, then a Skype interview with the head of WB ski school. Focus in applications was as much on teaching/coaching/leadership as it was ski ability. This route pipelined everyone into kids or adult beginner lessons, so days were always on nursery slopes to blue and lots of snowplough. But lots of extra training on mornings and days off.
Overall, cost to get out there and set up, didnt come home with much savings, but I was fairly self sufficient out there and skiing every day off and didn't work a second evening job in the bar.
This also got me set up with staff housing- 4 sharing a small flat in twin rooms. Housing in Whistler was hard to secure then and has only got worse since from what I hear.
A guy I knew worked in the climbing wall there in the summer, but he was also working on one of the zipline tour operators so infer it wasn't enough hours/pay to just do that.