No, you don’t have to. You can choose the day(s) that suit(s) you best.
If I sign up for the Big Volunteer Week, do I have to join every day?2014-02-052021-02-08//cdn.servethecity.net/wp-content/uploads/sites/2/2016/09/stc-brussels-logo.pngServe the City Brussels//cdn.servethecity.net/wp-content/uploads/sites/2/2016/09/stc-brussels-logo.png200px200px