Finding Pearling Work WA

Im currently living in Echuca - Victoria but i'm planning to head to WA in March. I want to spend some time working at sea pearling with a couple of my friends and was wondering if anyone could point me in the right direction as how to go about it. Broome looks like a promising option but I don't really want to turn up there and not be able to get work.
Are there any companies I could ring up to apply for jobs? I've had a look on the internet but its not too helpful. Has anyone got any numbers for companies they've worked for in the past? Thanks a lot.
Nick