Just make sure you wipe it down after using it in wet conditions and wipe some oil on it wherever there is metal exposed. <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" />
Yeah I dont get this insane fear of rust. I've used tons of supposedly rust-prone steels doing things like canoe trips and never had a problem. Dry your blade off when you're done using it, keep it oiled , and you'll be fine