Ysgol Gyfun Llangefni was built due to Anglesey’s prominent role as a pioneer of comprehensive schooling.

One of its notable innovations is the development of a Year 7 outdoor curriculum, utilizing the school's 20-acre grounds, including a former football field now transformed into a community garden.

The garden project, designed in collaboration with the North Wales Wildlife Trust and students from previous academic years, has been central to the school's curriculum.

This initiative aims to foster practical gardening skills, promote sustainability, and enhance students' connection to nature, improving both academic and personal well-being.

The school also promotes sustainability, working toward a carbon-neutral garden that educates pupils about climate change and environmental stewardship.

The success of the gardening project has garnered attention from the local community and organizations, positioning Ysgol Gyfun Llangefni as a model for innovative, hands-on learning practices.

During the summer term year 7 pupils enjoy the "Crafnant Experience" where they take part in outdoor activities such as kayaking, mountain biking, rock climbing and an adventure trail before camping overnight.

[11] The school serves a central area of Anglesey that includes Bodorgan, Bodffordd, Gaerwen, Llanbedrgoch, Llangefni, Llangristiolus, Talwrn and Dwyran.