La Grande Envolée is Kōwhai’s French-English bilingual unit. Launched in 2021, it is currently the only public intermediate school French bilingual unit in New Zealand. Run under the auspices of Frenz, a not-for-profit organization that helps public schools across New Zealand open and operate quality French-English bilingual programmes, La Grande Envolée teaches the New Zealand curriculum in both languages. Students spend three days a week learning in French and two days a week learning in English.