BOOK PORTSMOUTH

 CSS Activities @ Portsmouth High School GDST

Our Portsmouth Provision is split into two offerings: CSS Activities is open to all children (boys and girls) aged 4-11 years old from Reception upwards. CSS Mini Explorers is open to PHS Pre-School children only, aged 3-4 year olds. The booking forms have been split into CSS Activities and CSS Mini Explorers so please ensure you use the correct form.

** If you have not used our new booking system yet, you will need to register for a new account before making your first booking.**
Click here to login and manage your existing bookings.

  • CHRISTMAS HOLIDAYS 2025

    MONDAY 15TH - FRIDAY 19TH DECEMBER

    MONDAY 22ND & TUESDAY 23RD DECEMBER

  • FEBRUARY HALF TERM 2026

    ** BOOKINGS OPEN 6TH JANUARY 2026 **

    MONDAY 16TH - FRIDAY 20TH FEBRUARY

  • EASTER HOLIDAYS 2026

    ** BOOKINGS OPEN 6TH JANUARY 2026 **

    MONDAY 30TH MARCH - THURSDAY 2ND APRIL
    TUESDAY 7TH - FRIDAY 10TH APRIL

  • MAY HALF TERM 2026

    ** BOOKINGS OPEN 6TH JANUARY 2026 **

    TUESDAY 26TH - FRIDAY 29TH MAY

  • SUMMER HOLIDAYS 2026

    ** BOOKINGS OPEN 6TH JANUARY 2026 **

    MONDAY 13TH - FRIDAY 17TH JULY
    MONDAY 20TH - FRIDAY 24TH JULY
    MONDAY 27TH - FRIDAY 31ST JULY
    MONDAY 3RD - FRIDAY 7TH AUGUST
    MONDAY 10TH - FRIDAY 14TH AUGUST
    MONDAY 17TH - FRIDAY 21ST AUGUST
    MONDAY 24TH - FRIDAY 28TH AUGUST