Chelmsford County High School for Girls has an exciting programme of Enrichment Days. These are three days throughout the year (one in each term) when the normal timetable is suspended to allow year groups to engage in activities which develop and enrich their learning. Activities differ in their aims and in the curriculum subjects which support them but they are all focused on challenging and enlightening students and on helping them think about diversity, citizenship and their duty to others.
Activities on Enrichment Days include events in school, trips to museums and art galleries, visits to significant historical or geographical sites and presentations by guest speakers. In the academic year 2023 to 2024 the offering is as follows:
| ED1 – October | ED2 – March | ED3 – July | |
| Year 7 | Languages Day | STEM Day | Outdoor Learning Day |
| Year 8 | Creative Day | English and Drama Day | Languages Day |
| Year 9 | Diversity Day | Year 12 led RSHE Day | CSI and Forensics Day |
| Year 10 | Careers Day | Eco Conference | Holocaust Speaker and workshops |
| Year 11 | English Masterclass | Maths Masterclass | |
| Year 12 | Leadership Day – working with primary students and Years 7 and 8. | UCAS and Careers Day | University Day |
| Year 13 | Subject study days | Subject study days | |
| Visiting primary students | Fizz, Pop, Bang – Science | Languages | Creative – Art, Music and Drama. |
