Junior King's offers a particularly wide range of activities both during the school day and in the evenings.

Details of these activities are sent out at the start of each term and in some cases involve outside specialist help. A small charge is made to cover the cost of any specialist help and this is added to the end of term bill. Some activities are extremely popular and have to be limited in size for safety reasons. Junior House activities finish by 5:15pm and most other activities finish by 6:00pm and day children should go home as soon as possible after this time, having first signed out with the duty staff.

Clubs which take place after 6:45pm are by invitation only and include such activities as Judo, Cricket nets and drama. A charge will sometimes be made for these activities.

Below is a list of the various activities that take place at Junior King's: