GW2's Wintersday event helps players cool off by winging snowballs at each other.
To celebrate how bad heat sucks (it's been in the 90s for two weeks straight where I live), Guild Wars 2 has rolled out its Wintersday in July celebration. The frosty festivities are live now, and will continue until July 31. The event's main change is adding a Snowball Arena to PvP.
After finding a Wintersday Priest, players can head off to pelt their friends and enemies with snowballs. Winning a snowball fight naturally grants players Candy Cane Shards, which can be traded for unique Wintersday gifts. For more on the event, check out the announcement here.