Where i can do cristmas guest/missions?

i Am at "Lion archs"

But where can i do the guest/missions?
And how i get that hat on the enhanced snowmans or something.

Seriously, you poor mods. For crying out loud, use the SEARCH feature. THe answers are EASY to find!!!!!!

http://www.guildwarsguru.com/forum/s...ad.php?t=98115