An activity can be hidden from you if it's for members only or isn't open for booking yet. If you can see it but can't join, you probably don't meet one of its requirements, such as level, gender or age.
Why can't I see an activity?
Members only: sessions only for members don't appear if you're not a member.
Not open yet: sessions appear once they're inside the club's booking window. Members may see them earlier.
Course already started: courses disappear once the first session has ended.
Filters: the For you filter hides sessions you can't join. Turn it off to see everything.
Why can't I join?
Create player profile or Set your level to join: you need a player profile for the sport, and for padel and tennis a level. Tap the button to set it up.
Sorry, you can't join this activity: you don't meet a requirement:
Gender: the session is for one gender and you're not that gender, or your gender isn't set or is Prefer not to say.
Age: the session has an age limit and your date of birth is missing, or you're outside the age range.
Level: your level is outside a Required range.
Deadline to join has passed: the session is over.
Something went wrong. Please try again: this can happen when a members-only session is opened from a shared link.
How to fix it
Set your gender and level in Profile → Settings → Player profile.
Ask the club to add your date of birth, or to add you to the session.
Good to know
Only the club can change an activity's requirements, or add you as an exception.