Solstice of Heroes
From Destinypedia, the Destiny wiki
The Solstice of Heroes is a limited-time Destiny 2 event. It is typically the final event of the current expansion year, intended to celebrate all our accomplishments during that year.
The Solstice of Heroes is held in the Last City. It memorializes the Tower and celebrates the return of the Traveler after the events of the Red War. During this event, Guardians go to the European Aerial Zone for combat and meditation, fighting with various Cabal, Fallen and Hive bosses who seek to claim it.