a hive of activity
US /ə haɪv əv ækˈtɪv.ɪ.ti/
UK /ə haɪv əv ækˈtɪv.ɪ.ti/
1.
a place where many people are busy doing things
:
•
The market was a hive of activity on Saturday morning.
•
The construction site was a hive of activity with workers everywhere.