What's the difference between a school club and occasional care?
A school club designates a kind of care that takes place every week. It can either take place in the morning (before-school club) or in the evening (after-school club). So, as long as the care is occurring every week on a regular basis, it is typically considered to be a school club.
Occasional care, on the other hand, is sporadic, in the sense that it doesn't take place every week. It's typically a one-off care, or repeated only for a short amount of time. As such, occasional care will take place over the course of a few hours, or a day.