As usual, December means Wintersday in Tyria.
There's a bunch of stuff to do, and collect, and a considerably large jumping puzzle (Be warned of melting snowflakes). Information page (https://www.guildwars2.com/en/the-game/releases/december-15-2015/).
See you there!
Wintersday is scheduled to end today.
If you haven't completed your reward tracks, now is the time.
Sadly, I didn't have the time this year. 15 achievements done, 18 needed for title.
It will be there next year. The full 18 gives you a chest with a selection of minis, or 100 wintersday presents.
Next one up should be the lunar new year event @ Feb 9.
And, gliding in the rest of tyria is going to be a thing around end of Jan.