Thanks, Flyingmama, I did mention that. Apparently they're willing to gamble that they'd get back in time or else they don't plan to hire the plane if the weather is bad. Not sure.

SB-Travlr, thanks for the link, it looks good, and I'm checking it out right now. I'm already seeing informative stuff regarding the alternative tour out of that port that they might take, the penguin tours. Looks like a great resource.