You may find some of these sights helpful:

You can read the blog written by students from here

http://www.snowboardingdts.blogspot.com/

For more information about the 2 ski resorts close by:

www.tahko.fi
www.kasurila.fi

For more information about Finland:

www.finland.fi

and Siilinjärvi:

www.siilinjarvi.fi

You can also check out YWAM’s international and Finland’s national pages:

www.ywam.org
www.ywam.fi

www.ywamestonia.com