Ysgol Gyfun Cwm Rhymni

Ysgol Gyfun Cwm Rhymni is a Welsh-medium comprehensive secondary school located in Fleur-de-Lys, Blackwood, Caerphilly. Founded in 1981 with just over 100 pupils, it has grown to approximately 1800 students across two campuses: Gellihaf near Blackwood and Y Gwyndy in Caerphilly. The school serves a wide catchment area in the Rhymney Valley and is the only Welsh-medium comprehensive school in the Caerphilly borough. It offers education for students aged 11 to 18, with a strong emphasis on Welsh language and culture, and a curriculum that includes A/AS level and vocational courses. The school is known for its high standards of achievement and teaching, receiving excellent inspection reports from Estyn. Facilities include modern buildings with specialized teaching blocks, supporting a broad range of academic and extracurricular activities, including notable success in sports and cultural events such as the Urdd Eisteddfod.