Settings for photographing snow scenes with G7

I'm spending Christmas in Yosemite National Park, staying in the valley with stream, falls, surrounding mountains, etc. I'll also be shooting in dark interiors (19th C rustic hotel with dark wood walls, beams and ceiling). What settings should I try?

Also, if I set the G7 to bracket, does it take three shots automatically, or just how does that work? I can't quite figure it out from Sigfried's book.

The Bracket function takes three shots 1 on the money, 1 under, 1 over and in that order. you set the camera to bracket and it takes three shots so hold it still for the three.

Remember this; your camera is stupid and it wants to make every picture a nice grey colour because thats the average.
Its your job as the smart photographer to stop it making the photo grey.
So if its a all white scene like snow the camera will underexpose to make it grey so you need to set some + compensation.
You will also notice that the snow will be a bit blue so you might also look at white balance.
Before you go please have a look at my Ansel Adams video on youtube.
http://uk.youtube.com/view_play_list?p=77E20653F9221580

As for the interiors get yourself a big flashgun I use a nikon sb-24 (you can get these on ebay real cheap) on my g7 it works great in the flash auto setting but of course if you want full auto you need a new canon flash.
Good luck and please post some shots when you can.