The term "later activity" is correct and usable in written English.
You can use it when discussing activities or events that happen after a specific time or event. For example, "We scheduled the later activity for 6pm."
Several weeks later, activity at the volcano drops, although it remains active.
List students' ideas on the board for easier student access in a later activity.
List these claims on the board for use in a later activity.
Some officials have played down the significance of the test, and of the later activity detected at the launch site.
From his readings in early German history, in English literature and constitutional theory, and in the works of Montesquieu, he received impressions that were to be of significance for his later activity as a statesman.
The work of Freud was probably the most powerful single intellectual influence on her life, but, even as a researcher in her 20s, she showed the independence of mind and freedom from dogmatism that were to characterise all her later activity.
He stated: "Du Pont's hereditary background had justified the hope so meritoriously fulfilled in that officer's career, while his service as a midshipman on the then active Constitution must have proved an inspiration for his later activities".
Sooner or later activities that don't fit these criteria have to go.
The later activities of John Herz, who taught at Howard University, City College of New York and the Graduate School of the City University of New York, deserve mention.
Kaprow's later activities were closer to a kind of Zen-like, consciousness-raising practice than what passes for performance art today.
Unlike most historians, she takes his later activities and ideas seriously and is convincing about his long-term influence on Italian politics.
