User Activity Logs are accessible in three primary areas:
First, the Dashboard, which gives the 5x most recent user actions on the account:
Second, the primary place to see all user activity, is Account Settings > Activity Logs
Third, and final location to find user Activity Logs is on the detailed Users view. Click into any User on your account to see their most recent activity:
Filtering
In the primary Activity Logs area, you can filter by:
User
Action
Type
Date (From > To)
Export
Select the period you wish to export, then select 'Export CSV'.
Period options inclue:
Last 7 days
Last 30 days
Last 90 days