Adventures, a feature of Destiny 2 which was not present in Destiny, are a PvE Game Mode that are found in patrol zones. All of them are side-missions that can be dispatched to Guardians by free-roaming NPCs that you’ll manage to find wandering about on their own respective planets. Throughout the expansion of Destiny 2, these adventures are going to be used to fill the players on some lore or story that they wouldn’t receive in any other way.
Adventures are tracked on the player's map and take about 10 to 15 minutes to complete. Once all Adventures in a patrol zone have been completed for the first time on a character, the zone's Vendor will allow you to replay them for additional rewards once a day.
Adventures were removed from the game and added to the Destiny Content Vault with the release of the Beyond Light expansion. However, Legend and Master Lost Sectors are sometimes referred to as Adventures, with the game displaying a "New Adventures Available" notification when the player gains access to the daily Lost Sector.
European Dead Zone
Titan
Nessus
Io
Mercury
Mercury Adventures are only available to owners of Curse of Osiris on characters which have completed the Curse of Osiris campaign. Characters with a sufficiently high Power Level can also play these adventures as Heroic Adventures (unlike the normal Adventures, Heroic versions can only be completed twice a week rather than once a day).