https://www.polygon.com/2017/12/14/16777516/destiny-2-the-dawning-event-start-date-end-date-bungie

Bungie is bringing back The Dawning, the developer’s winter holiday-themed event, for Destiny 2 next week on Dec. 19. The limited-time event will add new gear, new activities and the spirit of giving to the game.

Destiny 2 players will be treated to redecorated social spaces with new activities during The Dawning. Guardians will be able to engage in snowball fights in the Farm and the Tower, and play a little Destiny-style hockey, thanks to an oversized puck and rink. Snowball fights will carry over to Strikes, too: Bungie said that players will be able to “blast an enemy with a snowball to stun them and deal big damage.”